A Pat-Wagon, short for Patrol Wagon was a Mega-City One Justice Department vehicle.
Block Mania Game
If the pat-wagon card is drawn then the phasing player must place a pat wagon on any Tween Block Plaza square. If all pat wagon markers are already in use, the card has no effect. The pat wagon is armed with a Riot Foam cannon. In each combat phase it will shoot at any target, in the priority closest available blocker, counter with highest strength value and mob counter..
Dredd: The Card Game
Pat Wagon could be used to reduce a perps resolve.