If all you fed him were pinkies (as you said, that's all they had at the show?) then he's still hungry...that's what hungry snakes do, peek out of their hide
in hopes that some other clueless rodent will hop on by. It's a good sign.
But...do NOT feed again now. Whenever multiple small items are fed to a snake, they should be fed in rapid succession. By now,
his digestion has started & if you gave him more right now, he may barf up all of them, as his enzymes may be insufficient if more
food is added at this point. So just relax & have a bigger meal for next time. Pinkies are not filling...