The Pam should work and remove the mites. I'd also suggest spraying a paper towel and running it along the top edge of the cage to prevent any mites from climbing out and spreading.

I've had mite problems before from w/c animals. Usually, I'll soak them for a couple hours to remove as many mites as possible while the cages are being cleaned and Pam'd. After awhile soaking, I'll add a little betadine to help with cleaning any wounds they may have received from the mites. Afterwords, when the PAM has thoroughly dried, they go back into their cages with clean paper towels. This has worked for me and prevented any further problems.

Not the strongest suggestion to do this, but this was suggested by another keeper and I believe has helped me, I've hung a ®Hot Shot: No Pest Strip to help. I don't strongly suggest this because it can cause problems being breathed in. I had used it as a last resort to help and have had no issues with it in a fairly small room.