I do a similar thing with my ICE car. We don't get a lot of snow here, but every few years we'll get a storm that leaves up to a foot on the ground. Significant snow like that is rare enough that the cities and county don't keep a large fleet of snow removal equipment, so they only clear the bigger streets.

I'm on a long dead end street that won't get plowed for quite a while, if at all. People with the bigger trucks and SUVs can still get through, and there are enough of those further up the street from me that usually in a day they'll have made enough trips that my smaller SUV can get out.

When it looks like we might get one of those storms, I top off my car. If I lose power, and my house cools off enough that even with a sweater and jacket it gets too cold to stay in, I can move to my car. A full tank of gas will run the engine idling just enough to power the heater and radio and phone charger for about 24 hours.

Power would almost certainly be restored by the time I'd be running out of gas.

And for most scenarios it works - having some energy is always better than none. eg. The fridge will stay cold enough while you go shop for more food or whatever.

There's a lot of $10k-$15k natgas whole house generators going in around my neighborhood.

Your view of electricity reliability depends on where you live.

It is interesting to me that this is phrased as a negative thing. If you are at the point where you are choosing between transportation and powering your home, at least you _have_ the choice and it is not made for you.