First and foremost, relax and form a plan. Having mites is overwhelming and will destroy you mentally if you let it. But the fix is quite simple. I feel that with Provent-a-Mite, you can easily control the entire situation.

First, I would remove whatever bedding the snakes are on, spray the tubs with PAM and then use paper (newspaper, paper towel, etc) as your new form of bedding under you have everything under control. I would also treat the paper with PAM. Now as you're treating the tubs, also treat the slot in the rack where the tub goes. Once this is finished, I would vacuum the floor around the racks so it's nice and clean and treat the exterior of the racks and surrounding floor space with PAM as well. If done correctly, you are still going to see mites, but they'll be dead. Repeat this process about 30 days later (double check because I could be off on this number) and you will be fine. After a couple of cleanings you won't see any dead mites either and you'll be back to normal.