They had probable cause to believe you were in violation of the contractor law requiring a license. There may be reasonable legal issues as to why this was "charity" work, but, a counter argument was that the person had a legal claim against you (albeit of slight value) and you attempted to remove that claim if she paid materials. If she agreed, you would have had a contract. It would not have been a gift. I think you may have had a better lawyer than the other side for the court to not recognize that. If that is a violation of the statute, I have no idea and don't want to spend the time to look it up as it really isn't relevant.
However, if there is not a case exactly on point, the government will have immunity on the issue of bringing up charges. There was no malicious prosecution or abuse of process.
For the extortion claim, you must look to what the other side will argue as well as your obvious anger. They will say, on the testimony of the victim, they had probable cause that you violated the law regarding contracting without a license. While crimes are against the state and not the person, a reasonable government official may look at that as kind of a wobbler as you really weren't going out soliciting people to contract work and the State is not going to be too worse off if this one slides. With that in mind, they know they can calm down the victim and have her not press the issue if you pay for the damage she claims you caused. That's not "extortion", that's just good sense and governmental efficiency.
Finally, as to "extortion" itself, let's look to the statute(s):
� 3-701. Extortion generally.
(a) Scope of section.- This section does not apply to legitimate efforts by employees or their representatives to obtain certain wages, hours, or working conditions.
(b) Obtaining or attempting to obtain property prohibited.- A person may not obtain, attempt to obtain, or conspire to obtain money, property, labor, services, or anything of value from another person with the person's consent, if the consent is induced by wrongful use of actual or threatened:
(1) force or violence;
(2) economic injury; or
(3) destruction, concealment, removal, confiscation, or possession of any immigration or government identification document with intent to harm the immigration status of another person.
� 3-706. Extortion by written threat.
(a) Scope of section.-
(1) This section applies to any writing, whether or not the writing is signed, or if the writing is signed, whether or not it is signed with a fictitious name or any other mark or designation.
(2) This section does not apply to a good faith reasonable notice of dishonor and warning of criminal prosecution under Title 8, Subtitle 1 of this article given by a holder of an instrument to the maker of the instrument.
(b) Prohibited.- A person, with the intent to unlawfully extort money, property, or anything of value from another, may not knowingly send or deliver, or make for the purpose of being sent or delivered and part with the possession of, a writing threatening to:
(1) accuse any person of a crime or of anything that, if true, would bring the person into contempt or disrepute; or
(2) (i) cause physical injury to a person;
(ii) inflict emotional distress on a person;
(iii) cause economic damage to a person; or
(iv) cause damage to the property of a person.
THE PERSON who sent the written notice did not accuse you of a crime. The woman would have.
THE PERSON who sent the written notice was not going to extort anything of value. The woman would be getting the value.
For an explanation of the federal extortion by color of authority, see:
http://www.justice.gov/usao/eousa/foia_reading_room/usam/title9/crm02404.htm
There you will find:
Most courts have held that a Hobbs Act violation does not require that the public official be the recipient of the benefit of the extortion, and that a Hobbs Act case exists where the corpus of the corrupt payment went to a third party. However, consistent with the federal offenses of bribery and gratuities under 18 U.S.C. � 201 (see 9 U.S.A.M. �� 85.101 through 85.105), where the corpus of the corrupt payment inures to the benefit of a person or entity other than the public official most courts have also required proof of a quid pro quo understanding between the private corrupter and the public official.
That is, the public official must corruptly benefit from the act. Think about it, otherwise, every traffic or parking ticket or letter from the IRS could be considered "extortion".
Could there be some claim on the OP's facts? Maybe. But, it's not going to be worth any attorney's time because there are more facts to come out on the other side of the ledger and the problem of governmental immunity. If the official was the victims son or someone close enough so that it was of personal benefit to him--maybe. Here? I think it is time to just let it go down as one in the win column. Maybe make a complaint to the powers that be if you'd like--but don't expect the hammer of Thor to come down on anyone's head.