Although I am not disputing that the guy in question is an asshole, I would suggest that we all should at least TRY to refrain from making inflammatory comments. He was rude to you–but calling him an asshole is really not helping anything. If not for the sake of a more civil world, then how about for purely practical reasons, such as self preservation? People have been shot for lesser insults. You just never know in these crazy times who is carrying a gun. (Or even if no gun, who will just stop and beat you up!)
Let’s all avoid calling people names, and just breathe deeply the next time someone cuts you off or startles you. We can all do our part to lessening the incivility we are surrounded by every day.
My $.02