$250 cash and no credit cards and need to go cross country?

Fill up car with gas, get some water and powerbars.

Drive to a safer city.

Call bank at home and have money wired to me.

Go to bank and cash a check (keep a blank one in my wallet)

Go on net, find internet friend from here or AR15.com who lives on my route home that has not had any disruptions, paypay them money so they can give me the cash (and make a nice little transaction fee for their trouble )