Far better to assume any new snake as a potential mite carrier and have a nice betadine bath for them, also good for other germs, and a nice clean house pretreated with provent-a-mite and white paper towels while in quarantine. Might also be a nice gesture to help this snake, plus any others he might have, by referring him here or at least printing off things or emailing to help him rid his snake(s) from this affliction. Lets help the unfortunate ones who cannot help themselves, and our fellow man. Never know when it will be us needing some advice or help. If you want to, give him my info and I will be happy to offer suggestions as a neutral party.
*Fila*