I completely agree with X that this was an absolutely classic episode. In fact, I'd say it was the best episode we've had in years. It was hilarious from start to finish, and it couldn't have pushed the envelope any further. Like X, I just sat there saying to myself, "How the fuck do they get away with this stuff?"
Just like last week with Ike being the central character, once again Matt and Trey made the PERFECT decision to build this show around Butters. They could have gone the easy route and made Cartman the pimp, in his ongoing quest of getting 10,000,000 dollars, but they geniusly chose Butters and the episode couldn't have been better. Also, like KB said... anytime that cop is involved, you know you're in for something hilarious. He's so over the top and ridiculous; you could build an entire movie around the guy and the act still wouldn't get old.
Terrific episode, and I have a feeling the show will continue to remain this great as the season goes on.