Try posting in r/legaladvice ? Personally if they didn’t call cops directly to the scene and file a report while still there I’d assume you’re fine, but I’m not a lawyer. Were there witnesses and/or cameras?

Yeah you made a mistake punching the dude, try to learn from it and don’t repeat that action. If nothing happens take it as a blessing and remember all the stress and guilt you feel right now the next time road rage threatens to make you lose control.

A license plate doesn’t give much info unless you have a lawyer/cop with special access to databases. Even with a VIN you can’t really get much info on the vehicle owner.

Check your mail pretty actively the next few days just on the off chance you get served any court papers.

Glad I’m not the only one who read it this way. I would love a store I could just walk into to buy ket. Not have to find a new plug in every city. One can dream…