Here’s an idea –
Direct people to the FEMA food storage facilities. Or NSA, BLM, DHS, whoever is stockpiling guns and food etc.
If food/medicine/supplies are really stockpiled at different locations throughout the states, it would behoove the locals to know where that is.
Map it out?
Make these maps available to city dwellers when they approach your place?
Maybe have some signposts ready to go, saying “food – this way”–>
upward and onward