Another option might be to find some empty real estate near the home of a particular Infected reviewer at Amazon: from “South Florida, Center of the Universe”… Let him have the privilege of reviewing another story… yesssssssssss. (OK, that’s too dramatic of a location change, but it was fun to think about.)
I had trouble finding a spot near Adrian with 3-4 square miles of untouched land. Sure, the Hatchlings can be stealthy, but there has to be a logical limit to how blind the locals can be. The area in the thumb just had more untouched land.