Did you notify the apartment management?
Did you notify the rental company?
Or are you just hiding everything from everybody in the hopes that nobody saw you and that the rental company won't notice the scratches?
As for what you COULD expect: You could expect to be charged with hit and run, you can expect that the rental company will charge you for the damage.
Whether any of that actually happens is impossible to predict.
What, exactly, do you want from us? A pat on the head and being told don't worry, everything will be fine?