No, I was a bit busy trying to get away from the guy and he didn't have a plate in the front (which is pretty common here). I wish I had, but there was just no practical way to get it. I just know it was a late-model black Lexus.
Possible attempt to hijack you, possible drug induced psychosis on part of the approacher. Best to get away if possible, if not kill the bastard and wait for the police to arrive. You could be saving more lives than just your own.