Without seeing any signs of mites, I would never use PAM or other pesticides*...but that's me. I'd look again & again, use white paper towels etc, but not expose

them to chemicals without a darn good reason. As long as you have them in QT, IF mites do show up, only then I'd treat for them. PAM & all such chemicals are

not risk-free. And first thing coming home I'd have given them a bath in mildly soapy water. Yes, aspen may be asking for trouble, since mites can sneak up on

you with an over-population-party. I'd have used only white paper towels, and you can crumple several of them & put another layer of paper towels over them so

the snake can feel fairly private, but mites will still show up pretty well. (*I'm not sure what's in Reptile Spray & have never used it, so can't comment on that.)