Looks like I'm going to have to put this off because the car is frozen shut and I can't get in through either door or the trunk. We had 2" of rain the other day and it dropped to single digits that night. She's locked up tight

I called two tow companies to put it on a flatbed and bring to their garage to thaw it out and they won't touch it because it's in gear with the brake pulled and they won't risk damaging it. If I pour near boiling water in the door gap will the paint peel? It's the latch that's frozen not the lock cylinder. I've already tried lock deicer with a hose but it didn't get in there sufficiently I guess.