Chances are most of us would be dead. I've been wanting to install iron bar doors over all my windows and entrances for years. If I had that, and a few months worth of supplies, I'd probably just wait it out. It would be nice to have an attached garage too to make escape more easy. Handguns and ammo. If I did have to vacate, I'd just hike into the mountains and live quietly off the land with just a sleeping bag, small tent, and a few handy camping supplies. Sucks to be you if your trapped in a big city.