Not a good thing to say. Try phrasing it as a question - not as a challenge. Just some helpful advice in the future when you deal with LEOs.Told me he couldn't cite me for speeding b/c he didn't get me on radar.
I had the good fortune of growing up with an uncle who was a DPS Captain so I got to learn while I was quite young what things tended to get their dander up. I'm not saying you were right or wrong - just a piece of advice I've provided to my own family.