Haven't seen cars get pulled over yet for inspection, however did see a bike, but that was a little bit off the parkway. My exhaust makes quite a bit of noise even though it's stock (old age and crap) and haven't gotten pulled over yet, try not to go over 3000 rpm when passing by cops though.

 

This weekend I asked a friend on the ffax co. police about this rumour and he did not know anything about it. He isn't a uniformed traffic cop (he looks for real criminals), so I guess it's still possible and he's just unaware of it.