South Bound Frontage road just north of Spring Creek you come off 75 doing 65 mph (posted limit) the exit is down hill then crests into another down hill that passed by the entrance to the Movie theaters. Well 10 feet past the sign that denotes the Plano city line the speed drops to 40 mph. Even if you are coasting you can’t scrub off speed going down the hill. Motorcycle with Radar in the driveway to Theater. Busted for doing 53 in the 40… No wiggle room, Went to court and the prosecutor tried to infer that I was speeding because I was driving an expensive car with a powerful engine… LOST….