Seems quite ironic that BMW's premier flagship for handling cold weather driving and snow would have so many cold weather issues....
I liked the other thread about silicone spray for the door-lock mechanism.

Will have to keep some on-hand, as that was DEFINITELY an issue this morning with 11 DEGREES outside. I actually got it opened no problem, but then could not slam the door shut. The latch was not locking... PITA
The other issue this morning (and yesterday) was the windshield washer nozzle jets were all frozen up. There was nothing physically blocking them, and the reservoir is half-full. But I got zilch coming out. I know some newer vehicles address this with active heating on the windshield washer nozzles. Is there a way to solve this?? I tried spraying the jets at several points during my 50-minute commute.....NADA