Unless and until there is a determination on your classification, you are an IC. Your work rules are defined by your contract. If you have included travel time in your contract, then you should be paid for it. If you haven’t, then shame on you.
Allowing the data to set on your computer is not compensable time whether you are an IC or an employee unless as an IC you have contracted some fee for storage. As an employee unless you were activity working (working can include travel time depending on the circumstances) or what is called engaged to wait, your time is notcompensable.
If you are waiting to be engaged (applies to employee situations), there is no requirement to compensate you.
And allowing the data to set on your storage is not engaged to wait. It requires no constant tending. It merely sits there while you go out to eat or go on vacation. You are not even waiting to be engaged really.
Your probably right about the time not being compensable. However I’m engaged to wait. I read an example straight from dol website about a truck driver being on duty until he is completely relieved of all duties which in his case was the duty of taking care of the truck even if he used the time for his own purposes. I know literally I’m not working but I’m just referring to the fact I’m engaged to wait and by definition I’m not off duty.