Probably not. Its a super special secret product that pet shops aren't cool enough to carry. It's like doomsday for mites though!

In the mean time, you can soak your snake (in a secure container, filled with about 1-2" of tepid water) for about 30 mins to an hour. This will drown some of the adult mites and keep your overall infestation down (less adults = less eggs = less new mites) until your provent-a-mite comes. If there are a lot of adults, put a couple drops of dish soap or hand soap in the soak, that seems to help kill more mites faster (the mites are able to create surface tension around them when they are submerged, allowing them to live longer underwater, the soap breaks that surface tension).