Autograph Merch

Hey everyone, I'm new to the forum but definitely not new to Joe. I had a question for those who have been to a bunch of his concerts. I finally got to see Joe live for the first time last night in Cheyenne and will be seeing him Sunday at Red Rocks. What I was wondering if he sells Autographed Merch at his concerts? I really want to have a memento for finally getting to see him for the first time. Any help would be greatly appreciated.