Bigmouth's wife leaves with stolen goods and at first, it doesn't seem like there will be any consequences beyond mere speculation. But in the end, it's revealed that Fort Repose is miraculously the largest part of Florida clear of any radiation. That can only mean that she only won in the short run.
It also borders on Fridge Horror to imagine how far she'll get before she realizes she's a goner who drove head-first into her doom.
