You can write him, but as for return mail from him it's possible, but I am not sure
Yes he does sign autographs. A lot of the items they sell are pre autographed by him. You can also visit there on a Saturday when he is there in person. If you are purchasing something by mail I would call them to see if you can get the autographed one of the item you want.
He has done autographs through the mail before. Call the store first to set it up.
I believe you can write to him there and he does give autographs when he is there, but not sure about getting one mailed.
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