Yesterday morning I rounded a curve out on a country road shortly after sunup and there was a sheriff's deputy sitting there "taking pictures." I looked down at the speedo and it read 53 MPH. The posted speed limit was 35, but he didn't wave me over. A second or two later I gave him a short beep on the horn and a nod as I passed in front of his car.
That was the first time in the past 4 years that I've seen a radar trap at that location, but in the future I'll be mindful of it in the event that my luck might run out.