You play with fire and you will get burnt!!!!! You speed you get caught. Your warning with the stobe lights probably played an effect with your speeding ticket. Pulled the plate # and saw warning, decided to pull ya over.
One question: What was the traffic like? Were you swerving in and out or flowing?
Sorry if this sounds like I am dick, but I think we have all been there and done that. Truth hurts. Sorry about the ticket. Oh, all city cops aren't horrible.