We got a bunch of snow over the weekend. I don't have a garage, so I have to park outside. My mirrors got iced up and made a nasty noise when they unfolded so I turned off the auto fold to prevent any (further?) damage. I came outside this morning and noticed my mirrors were folded in, but did not unfold when the car unlocked. They unfolded normally when I pressed the button to manually unfold them. When I went outside at lunch time today I noticed my mirrors were folded in again. Is that normal behavior? Is there a way to totally prevent the mirrors from folding if that's the case?