PAM is a 0.5% permethrin solution. You can also make it using NIX lice treatment. There's a package sold with 2 2-oz bottles. Mix one of the 2-oz bottles with a gallon of water and spray the enclosure, hides, and paper towels you'll be using to line the enclosure. Let everything dry and put the snake back in. Do not spray the snake or water dish with it; some people will tell you it's ok, my vet said no it's not, the chance of permethrin poisoning is too high if it's applied to the snake, and it causes permanent neuro damage. I do use the Reptile Spray directly on the snake and it works, but I spray it onto a paper towel and wipe the snake with it, as it seems to stress them out less than being sprayed. I would also ditch the wooden hides, I've found that my BP's pooped and peed on them and that's just nasty to clean. Either get the ones from Reptile Basics or make your own plastic ones.
I will check the pharmacy tomorrow morning to see if they carry Nix. As for Reptile Spray, I have never seen it for sale at my local pet stores. Tomorrow I will call around. If I cannot find it, hopefully I will find it at my local reptile expo next week. Thank you