While the character discussions here are great there was this earlier question put forth. My response: one of these.

Fuel may be more readily found in the tanks of abandoned big rigs, construction equipment, etc. than gasoline. Plus you could start making biodiesel.

I'm a little surprised that finding weapons seemed difficult. They should be littering the highways as the armed living run out of ammo and become zombie meals. Do persons without ammo become MRE's for zombies? (man-ready-to-eat)

Wonder if .22LR is an effective caliber for zombie dispatching? Could carry lots more rounds and probably easier to find at the local Walmart. Hit men have been using .22's for years.

Could all the food stores, distribution hubs, etc. be out of food a month into the event if the population that's not eating each other is rapidly diminishing?

Anyway, interesting take on the zombie metaphor.