Iremember once when I was sure the door lock was frozen solid. I'd turned the key (my remote is sh*te!) and it was stuck solid. We'd had a sharp hoare frost, the windscreen was almost hairy with ice crystals.
I applied *plenty* of deicer, and then resorted to lukewarm water poured around the door seal. To no avail.
Then realised I'd forgotten to lock the car the night before, so had locked the door then attempted to pull it open!
How stoopid did I then feel?
Just glad that no neighbours were present with the usual helpful advise and suggestions.......