Well, socks, what you say is true, but the fact is his behavior also reflects on everyone who bikes not just himself. It's irritating to see other people do stuff you'd never do, then to hear people (or see news articles) be critical of bicycle riders because of that sort of behavior.

But on the other hand, nothing you can do (unless you get a chance to chat with the guy later), so no need to get hot about it... that just takes years off YOUR life.