The "sticker" has no adhesive...it sticks purely due to static cling...should be okay right?
Aside from the removal issue, which shouldn't be an issue since there is no adhesive, I am mainly worried about the sticker while the defroster is in operation...will it damage the sticker? Melt? I don't want to have a mess back there...
If i'm not mistaken.. the defroster doesnt get above around 40 degrees.. its just a constant 40 that melts it.. it doesnt go high enough otherwise it would shatter the glass if the glass was cold.. =)
Just my two cents