Work or in my car, all bets are off. I live in a pretty small county, and my first job would be to get me and my Wife home.
Water will never be a problem at home. We have a stream that runs pretty much all year. When it doesn’t we have snow, or it’s just under the snow. While it gets cold in the winter, we are in a solar house and heat with propane, the tank usually lasts 6 weeks. We have plenty of wood for the chopping, so we can melt snow for water, or put it on the propane stove.
I heated with wood for about 12 years. But I wouldn’t worry to much about trying to heat the house when the propane goes. We have plenty of cold weather gear just as a mater of day to day living.
Food would be the first issue. Not too much to hunt at our alltitude. And I’m not a fisherman, though, there is a reservoir full of fish about 1.5 miles away.
Shelter first, then water, then food. That’s what you need to survive. I have about 8000 rounds of .22 that would keep us in birds and ground scrirrels for a bit. I’ve plenty of larger rounds (.356 and 30-30 that I could take deer with, but we only see them in the fall).
My father has boxes of freeze dried food that he bought when he was sure the world was going to end at midnight 12-31-1999. A couple of months worth for 4 people. That was his idea.
The ‘plan’ was then to come to our house in the mountains where we have water and shelter. ehh.
Eating just a substinsance diet, just my Wife and I would be hungry pretty soon, but could stay pretty strong for about 2 weeks with our basic larder.
No earthquakes here or volcanoes, but if we got stuck in the house, we have 90 gallons of water stored in water heaters (provided they survive the event)