Holy crap, I just discovered something weird! When you go into "Scenario" mode in CodeWalker, there are little boxes on the spots where police cars would normally spawn alongside the highways. This must be one of the only exceptions for it to not be known as a parked car.

Hey, is anyone still using this thread? I am very interested in knowing how police and sheriff vehicles spawn on the sides of highways in Blaine County on rare occasions... I couldn't find any of them using CodeWalker though I see some parked at police stations.