What humorous anecdote about Cape Cod does Bryson share in the nonfiction book, The Lost Continent: Travels in Small-town America?

Bryson shares the story that while in Cape Cod, he stops and has a hotdog "with sand" and coffee, also "with sand." He also makes special note of the fact that the pilgrims landed in Cape Cod by accident and quickly moved on, and that he opts to do the same.