Generally – the eastern part of Prince William County
It has become common practice in this area to park a pickup truck (think red) which will be parked diagonally on the shoulder.
Behind the truck will also be found a motorcycle cop.
And lastly, this little combo will be most likely found at a location where the speed transitions from 45 mph to 25 mph.
Nice – makes for great public relations at a time when it is sorely lacking