mirrors glitch

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...

On my 1 month old S I found that occasionally the driver side mirror seemed to lose the setting. It didn't look like I set it up before and I had to readjust it. Not every time but enough to notice it. I finally figured out today what's going on, and that's on occasion the mirror does not fold...

2016 MS (had it for 2 months): when I parked, mirrors folded in as usual. When I returned to the car, it took an unusually long time for the startup sequence to run, and the folded-in mirrors stayed folded. In the Settings panel, I tried changing the folding mirrors toggle back and forth, no...