Whoever gets there first should arrive with something in their hands.
Fill this in once. What comes back is a link. Whoever can be at his door within the hour opens it to a finished card — what he has, what he takes, who to call, and where their authority ends. Nothing you type is sent anywhere: it travels inside the link itself, and there is no account and no server holding it.
Send this to whoever gets there first
The whole card is inside this link. Send it however you already talk to them, and tell them to add it to their home screen — after that it opens with no signal at all.
Emergency card
Where your authority ends
Add this page to your home screen. It opens from there with no signal.