I wonder where police cars get their gasoline from?

https://lemm.ee/post/1575716

I wonder where police cars get their gasoline from? - lemm.ee

I’ve never seen a cop fill up at the gas station.

The city may have a maintenance depot where city-owned vehicles fuel up.

Same goes for (e.g.) school buses, snowplow trucks, and so on.

I worked at a small school that had diesel for the buses but vans had to be fueled at a gas station with a school credit card. Police departments in any major (American) city will definitely have several fueling stations for cop cars.
This. I worked in municipal government years ago. And there were a few different depots for the county vehicles, including police, to gas up.