Some roads aren’t perfectly straight (not that this seems like it could explain what happened in this particular case).

That's fair, but even the commonly cited longest route [0] you could theoretically walk without intentional detours, Cape Town, South Africa to Magadan, Russia, is approximately 14k miles.

[0] https://www.reddit.com/r/MapPorn/comments/a2mcjq/21212_km_fr...