I had this happen to me the other night, I was on campus and the cops were out looking for people to give tickets to. I make a turn and of coarse the cop I saw starts following me, and I'm thinking damnit hes gonna find some reason to give me a ticket (I was going the speed limit and following obeying all laws to not give him a reason to do it.) I think he ran my plates and saw that the car had no tickets, and then he left me alone. The thing that made me really thank god was when I got back to my appartment and I looked on my desk my walet was sitting there, so Had I been pulled over I would not have had my license and would have been screwed.