Imo i can see this being thrown out of court if it goes that far! Maybe you should go to the C.A.B to see what they think? Did the police actually come out to you? If they did were you given a card with the policeman/womans name if so, get in contact with them as well. But it doesnt help that his parents are a solicitor and policeman, that was probably a reason why they tried it with your car as they knew they would probably get away with it!