I think a nastygram demand letter for those costs at a bare minimum. Lawsuit tends to put him in a sticky spot and risks making news that he'd rather avoid. I'm sure he was hoping the police and/or team would have put the fear of God into this kid and his family - he had to freaking move out of his house after all!
As for the kid, I've spent a good amount of time in Bloomfield Hills; my money is he's going to continue to be a spoiled shit and never move more than 30 miles away from his parents house. I could be wrong, but most I know there prove me otherwise.