Per Adam on his Facebook page, he will sign 5 for FREE, and will charge for anything above that. They said if you got back on line again, you could get another five signed, unless the line is capped.
I have 3 days to try, so should work out. I think he is over in artists ally this year, and that tends to be a little less crowded.
Spoke to Adam this morning, definitely not doing sketches, giving his hands a break this weekend. He said doing everything for his new book he has not time for commissions.