This may work well. I am not familiar with the adhesive used on this material. My guess is that the removable properties on the plastic I used changed with age, heat and pressure from keeping it in my coat pocket at all times. I would recommend a test, but for me I will not use any adhesive materials on my mirrors ever again, as I cannot predict the removal characteristics with time. I have found a good zip bag to provide adequate scratch protection. I would much rather have an instantly available mirror with a couple of minor scratches than one that may be impossible or require a long time to deploy in the field.
The static cling characteristics of the palm window protectors would be a good thing to try out, but again I would keep the mirror in a zip bag to keep off dust etc that could go under the cling protector and scratch up the mirror big time.