a bloke i used to get a lift from occasionally always sped and drove like an idiot, while complaining about the speed of traffic on his road, one day he rushed home, and luckily a nice police man was on his road doing a speed check.
He got checked and was speeding, he was not happy as the copper came to his door, and when he told the copper to find more important things to do, he got 3 points and a stern warning.His roadf now also has lots of speed bumbs.
If you want to be a speed check bunny,(they always have the look of startled rabbits) please dont speed on other peoples roads, not that you ever would.
But its great scheme, and slows traffic down, and saves a lot of police time, as the volunteers do it for free.