Questions to ask:
1) Were WE speeding that day?
2) I thought I was just keeping up with traffic and wasn't looking at my speedometer. Are you sure you were going that fast and if you are why didn't you have your lights on?
3) Approximately how far behind you was I?
4) How long did you observe me for?
5) Can you typically make rear view observations while driving 135km/hr without your lights on? Was that part of your police training?
6) How much closer do objects appear as you observe them in a rear view mirror? How did your police training tell you to account for that factor?
7) Did you slow down quickly? For what reason?
How many times did you look at your speedometer while these events unfolded and how far behind you was I at each point? (Sometimes with math you can prove contradictions and I'm fairly sure the officer who probably isn't that bright will start to make stuff up.)
9) How far behind you was I after you slowed down quickly?
10) What is a safe distance to be following? Could it be the distance needed to stop quickly if the person in front of you slows down quickly?
11) How was it that even though your car has better breaks than mine I was able to slow down quickly without hitting you if I was travelling 135km/hr at an unsafe distance?