That is something I've taken into account. I work for a nationally known company in one of their large offices (10,000 employees). A major electric feed comes in right to the south of my neighborhood so we still have power when people elsewhere will be without. But the largeness of the company and such makes it be a possible target.
I used to carry a lot of gear in my truck so I could make it the 20 miles home, now I shifted most of that gear to home since its nothing to make it home. I now have a small old camper that I'm currently rebuilding the roof on sitting in my garage that will be ready to go at a moments notice. Plus exploring back roads so I know alternate routes and being outside the city's outerbelt help with that some.