Very hit & miss - mostly MISS (fortunately!)
We were worried about the same thing last 3 trips out (July 4, early & late Sept), but only saw the sheriff patrol cruising thru once or twice each day - no actual 'enforcement' that we heard of.
Make sure to slow down before approaching the Overlook, since that's where they most frequently 'shoot radar'.
I'm also making it a practice (sometimes) to turn around before the overlook, as that is where they usually scoop up people in the 'stings'.
Just like every time you swing a leg over the bike - roll of the dice!
Do ya feel lucky, punk? Well - DO YA!!