 If you're driving and you see a police car with a guy pulled over or a lady pulled over, everybody slows down. Nobody has any idea why they're stopped. They might have been a disabled motor vehicle, but they see the red and blue flashing lights. Uh-oh, they slow down because they don't want to get a ticket. Or they see a state trooper on the side of the road. They'll slow down because they don't. Not everybody, unfortunately, but most people will slow down because they don't want to get a ticket. The point is enforcement works.