Just because someone's an asshole doesn't mean you need to hate them.
Maybe he was having a bad day, or maybe he's tired of seeing people after shows.
Remember, being a comedian means that your day job consists of getting in front of people and talking, and having to deal with obsessed fans after every show. I'm pretty sure I'd be an asshole after shows sometimes too, if I were a comedian.
He happens to be one of my favourites. Chris Rock is too. Seinfeld is awesome as well. I have to admit that the show Seinfeld is pure genius.