I get what you are stating, but this would be illegal in Pennsylvania. If it was in Philadelphia I wouldn't put it past them to do it, but I'm telling you if it happened in Pennsylvania it is highly suspicious at best.

Probably Fire Police if it were in the Montgomery County area. Fire Police are sometimes a odd bunch. They will buy a used cruiser and then put all their whack-a-mole lights on it along with antennas to give it that cool look.
What people may not know is that a PA Fire Police Officer only has to be a member of a volunteer fire department in the state. There is nothing in the PA State statutes that prohibit them from their services being used throughout the state.

Source: I've studied this stuff that was taught by a Pennsylania State Police instructor. Some people are also under the impression that a fire police officer may not posess a firearm... And this of course would be false as well. If they use it for protection or for personal carry it passes the sniff test. If they use it in the performance of their duties it would be illegal.