We could simply use google-maps and RL-locations.
-Well, maybe not, [i]since naming stores may be a bad thing[/i].

But generally, most places are cool with the free publicity. [i]Using the store-owners as NPCs[/i], however...
-Simplest solution, FEMA-evacuation.

*Goes on google-maps looking for "Now which of these stores is most likely to survive a zombie apocalypse and/or WROL?"