Googling "fargo police chief resigns": https://www.inforum.com/news/fargo/zibolski-announces-his-re... among other results.

That said, it's portrayed as a retirement, and doesn't seem to give any hints that it's connected.

Out of curiosity, was the guy known for being fast and loose with the rules? Put more simply, was he a good cop? Or did he have a history of being a rogue.