If they want to go into the flood zone that badly, let them.
The downside to this is what if they want back in so they can loot other houses in the area? I live in a nice neighborhood, but I know it has some very bad seeds in it. I wouldn't want them roaming around knowing the cops and most people are elsewhere.

How do you guarantee the people going back won't be breaking into other houses?
As for the liability waiver, maybe we could make it a requirement that they have to bring a lawyer with them into the danger zone.
-Blast