My windows were frozen also and as someone else mentioned there were a few times my keyless entry didnt work as it should. I decided not to toy with the windows and just let them thaw out naturally.
However I never gave any thought to the fact that they do slide up and down when the doors open and close and if the doors are opened and closed too quickly then technically I assume it does have a high chance of shattering the windows but I dont think it would do any body damage.

Anyway I didnt damage anything getting in and out and when the weather gets freezing again here in the northeast on Thursday, I will be sure to leave the windows down a slight bit to bypass the dynamic window up down thing.

'04 G coupe TB Graph 5A (all options except NAV).
No Mods.....yet

"Hello Everybody...My name is Black and I am a G-oholic."