Well since I live in one of the larger metropolitan areas in the country I'd most likely be screwed. However, I'd most likely make a rooftop runaway to roy highway (after gathering up my p90 and p228 from the shop) and follow that west until I reach the airport. After a brief panic there, I'd try my best to make it to the outskirts of the city, perhaps to a little town. I'd then attempt to find the closest barracade factory and stay there for a while until things die down.

After things seem quieter, I would then try to find my way to the mall for supplies, as I'd most likely be running low at this point. After finished at the mall, I'd take the bus to the subway, which for whatever reason still works perfectly with but a flick of a lever (who knew subway cars worked via lever?) to look for any survivers holed up. I'd then climb back up to the surface, hop on the bus again and make my way to texas where I would promptly find the closest high school and then wait out armageddon in the red room. I'm thinking that since all the admins would be dead, I'd just cade it and lol at all the qq'rs.

But in all seriousness I'd most likely die.