I will watch out for the next couple of days, who knows if he plans on doing anything? Plus his crap is packed up in a box. So of coarse he has to come back for that stuff, hopefully after hours.Ha! What a loser. I think you should've put "quit" in quotes; sounds more like he was advised to leave (a.k.a. fired) than quit.
Just for good measure though, if you have a bullet-proof vest laying around, I'd wear it for the next few days.
Lucky he doesn't know, I have a new ride, unless he stalking outside. But the company does have security cameras outside.