They definitely feel rough/dry and do not have fluid or anything under them. You can't see skin or redness either. I know at the store their herps are kept pretty dry, just above desert humidity. Not sure when he shed last.
BPelizabeth- I've only had him for just a bit over 24 hours. When the store got him (a few months ago) he was smooth and normal looking. Then he started getting bumpy. I don't know if he shed in that time, I was going back to the pet store in a few days anyway and will probably ask the girl who's more in charge of caring for the herps. (Vet visit will probably happen before I get back in there, though.) No mites or ticks, though the store did recently have a bug problem. He was sprayed with something at the store like the other reptiles a few weeks ago. Not sure what it was, or if it would have killed the bugs and left his scales as they are now. (It does sound like the bugs and the bumps starting showed up at around the same time.)
He acts completely normal. Haven't fed him yet, but he doesn't breath hard/heavy, doesn't sneeze, and acts just like any other snake. Very comfy with being handled and will explore around a little while you hold him.