[chrisbennet]

I can sympathize with the poster for calling out this sort of rudeness but I'm also torn.

Rude behavior is a powerful "tell" or signal that gives you insight into how that party may behavior in the future. As he notes, he's going to avoid them in the future.

Now suppose they "get the message" that this behavior makes them look bad and institute some sort of "fake" courtesy; that signal will be lost. Personally, I'd rather not tell the jerks of the world that they have a sign on their back that says "I'm Jerk".