Crowdsourcing by waffle

Waffle House, a ubiquitous chain of yellow-roofed diners, is as much a fixture of Southern life as the grits, hash browns and crispy waffles that it serves all day, every day, even on Christmas. In Georgia, where the 1,600-store chain originated, it is hard to find an Interstate exit without the restaurant’s yellow block-letter sign nearby.

…federal emergency officials even use what they call the Waffle House Index to determine how severe natural disasters are in the South. If a local Waffle House is closed, along with a Home Depot or a Wal-Mart, it indicates a longer recovery process.

From a NY Times article on Waffle House crime sprees.

I wonder what they could use for early warning elsewhere. Starbucks in Oregon? Tim Horton’s in Canada? Nail salons in NYC?