If you were doing 56 or more in a 55 zone, your guilty, period. It does not matter if the cop was doing 100mph, he is exempt from speeding laws. If you are going to loose your drivers license because of this, you should hire a lawyer.
This is one of my pet peeves. Cops run 85+ in the left lane all the time going no where. No one should be exempt form the law. I don't care if they wear a shiny badge or not.:banghead: