Traffic ticket issued - not speeding
Last night I was on the thruway in NY with my sister and niece in the car. I had my cruise control set on just under 70 so it would be 68 - 69 mph. The speed limit was 65 mph. I was pulled over by a state trooper. The officer asked if I knew why he pulled me over. I said no. He asked if I knew how fast I was traveling. I told him yes, that I had my cruise set on just under 70. He said he tagged me going almost 80. I said that wasn't possible, repeating what the cruise was set on. He said that I slowed down after I saw him but that also is absolutely not true. I never touched the brake or canceled my cruise until after I saw his lights on to pull me over. I know absolutely without a doubt that I was not doing 80 mph and that I did not slow up after spotting the police car (I retained my set speed). Until he put his lights. What should I do to fight this?