Per rbowman:
Of course, a true survivalist, the guy had
about as much real money in his pocket as he had gas in his car when the
lights went out.

They're probably all dead by now, but 20-30 years ago in the NYC area
there were at least a few survivors of The Holocaust that had food and
about $10,000 in the trunks of their cars at all times.
--
Pete Cresswell