why are you apologizing on the internet for tripping out?
dude, everyone bugs out once in a while - and words are one thing but when someone endangers your life with a motor vehicle i think you are more than justified[to freak out AND smash teeth].
also, im pretty sure its healthy to just go mental once in a while. im a grown ass man taking care of a wife two kids and a mortgage and some mornings on my commute if i get cut off badly on purpose styles i'll go off route, chasing the car for a few blocks. if i catch them i'll yell a lot and maybe punch a side mirror. spitting has happened before too. or i'll just give up and keep on to work. meh.
dont worry about it. if anyone who was there has an issue with it they probably dont need to know you anyway.