Heard back from the police today so I figured I would update.
They believe he was out of his mind on narcotics and/or having a mental health crisis and was hallucinating. He was down in the park with a girl and basically hallucinating that the girl was his ex wife and that I was involved with her. The girl given a ride to someplace safe. The guy was taken to the hospital as opposed to jail. Which I’m fine with.
I’m not too concerned with him tracking me down now that I have confirmation that he was in no mental condition to be remembering my plate number or even that I exist. I can see in hindsight how unlikely it would be but at the time I first posted it was pretty fresh.
Anyway. Don’t do narcotics boys and girls. Thanks everyone for a lively and wide ranging discussion.