He played at the White House, and didn’t greet or speak to obama. He didn’t even shake his hand. The irony was in a Pawn Stars episode, the owner of the Pawn Shop tasked his employee “Chumlee” to wait outside a casino where he was performing to autograph an artifact brought into the store. Chumlee succesful met Bob Dylan shook his hand and got the autograph.
One problem: He got Dylan to sign the album "To Chumlee" which made it basically worthless as an item the pawn shop could sell. Who's gonna pay top dollar for an autograph directed to someone else?