...Or wait for a 6.5 to 7 earthquake whereafter electrical power may be down for days.
Heck, following the 2009 mid-south ice storm, many people’s electricity was down for a week, and a few a lot longer. There were still generators running 3 weeks later, just up the road from us...
If the New Madrid fault was to let go in the manner it did in 1811-12 (repetitive major and near-major quakes) for many months, parts of the region’s electric supply very likely would be mostly down for up to a year. It’s a big region, too: the ground waves travel very efficiently...
You’d be crazy not to have a generator if you had an electric car.
But assuming you DID have such a generator, you’d be back on the road, while your gas-powered neighbors would be out of luck until the power was restored so the local gas stations could pump them their fuel.
The beauty of electric is that you can generate electricity many different ways; I could envison a system that combined solar, natural gas, and propane as a backup to the electric grid; use the natural gas so long as the gas company can deliver it, then switch over to propane, but use the solar in daytime whenever you have it to stretch out your propane.
And during those months, you work on building the hydro plant on the stream that runs through your neighborhood; or you finally set up that wind turbine you bought but didn’t have time to play with.
It is almost impossible to be “off the grid” with a gas-powered car. You can pretend you are, but even if you put in a couple-thousand-gallon gas storage facility (good luck with the permits in some places), you have a definite end point.