What a horrible set of coincidences.
The only thing I can think of to generate heat with no power is FIRE thanks to all those survival shows. It's cold winter nights like this where I wish I had some sort of fireplace.
No power loss here, just a heaping mountain of snow that I'm finding a hard time removing without the use of a well "maintained" snow thrower. It's turning into ice right now so I'll have to bring out the mattock to chisel it out tomorrow.
Oh, one actual idea in the future is HEAT packs, spare blankets & a cooler/thermos type ice chests to store everything in.
Good luck.