Thanks guys! I soaked the Hoggie and she seems to be doing fine. The Boa actually wasnt soaking when i woke up this morning, but started soaking half way through the day. Ill be removing his water overnight after the reptile spray treatment. Ive also wiped down his cage and changed the paper towels, which ill be doing daily for a week. He seems to be doing better though, and less mites i keep finding in his dish! The Hoggie has shown no signs of mites, and i checked her and couldn't find any either. Thanks so much nightflight, its really awesome of you to answer all the questions

This is just my luck, ive only owned snakes for a month and of course the one snake i just had to have has mites... Oh well, hes so sweet it makes it worth it!