Living in Chicago - There is *no* chance to get out of town. It's just too large and the streets will be too jammed. This sad fact was hammered home a few years ago when a large rainstorm took out the power and most street lights. Traffic was gridlocked to the point that it took me nearly 4 hours to make short trip that normally takes 7 minutes. There is just no way I can leave.
My plan is to hunker down and pretend to be struggling like everyone else. Figure if it's bad enough all the dumb/desperate people will kill each other off in the first few weeks.
What I don't have, but need, is a solar system to power two deep freezers. A generator makes too much noise and will be a strong signal that I have "stuff".