My favorite line was the "You're a real shit cop." What really made the scene though was Ted Danson laughing at it.
I guess there were a bunch of Coen brothers nods this episode. I'm not sure if that's typical, but I read an article tonight and it pointed out that Just Dropped In (different version, however) was from Big Lebowski, Danny Boy from Miller's Crossing, and O Death from O Brother. The "Sometimes, there's a man" from Milligan's speech also was a nod to Big Lebowski that I somehow missed, but was pretty blatant.