This is fairly close to a nightmare scenario. Cooped up with strangers whom you may or may not be able to trust; and in an urban desert where you can't lay your hands on resources to help yourself.

I've always been a fusspot about having adequate clothing, footwear, and a few minimal tools. I have never had reason to regret it.

I'm surprised that the first responders couldn't give them any materials. Even plastic sheeting and duct tape could have helped.

If any of us felt inclined to help the others in this situation, where would you start?