The New England Fog and Uncle Paul

Growing up, whenever Marash Girl and her family were in the car driving through a heavy New England fog, they would remember and retell the story of Uncle Paul, who driving from New Jersey to Massachusetts through a heavy New England fog, was unable to see anything except for the taillights of the car in front of him.  That was enough for Uncle Paul, a fearless and well-practiced 1930's driver.  In the midst of his trip, however, the car in front of him stopped suddenly.  Thus, Uncle Paul found himself stopping behind the car he was following; he couldn't figure out what the problem could be.  Pulling up his brakes, and getting out of his car, he found that he had pulled up behind the car he had been following --- pulled up right into their driveway!  Where he was now he had no idea, but at least he was safe and sound at home, even though it was someone else's home!