Was Steve Zahn Stoned on Conan Last Night?

Steve Zahn's appearance on the Tonight Show with Conan last night was one of the more delightfully bizarre interviews we've seen in a while. Watch Zahn ramble incoherently about his love of farm animals and hitchhiking in a chicken suit.
But hey, what can you expect—he's a Hollywood actor who lives on a farm in Kentucky! And Heidi Klum looked sort of traumatized by him. God bless Steve Zahn.