make sure the court hears the whole story and subpoena the salesman if you can.
Also you can call the dealer who owns the car store, and ask him to help somehow.He could agree to pay any fine for you because he has a really bad acting salesperson in his shop who used his position to benefit himself and not the dealership.Go see the dealer , make an appointment for a polite face to face.
THANK YOU! That explains why the dealer is ducking. The salesperson has been fired already.