Nonsense, my good man. All you need do is wait until my favorite restaurant issues the new place mats. Although they are conspicuously marked "Not for Navigational Purposes" in big red letters, I have used them for years. They are plastic, so all you need do to find Casco Bay or Boothbay, or Kennebunkport is wipe off the ketchup and keep your eyes open.
What the heck are a few degrees of variation among friends? You airplane drivers are always looking for trouble where none exists.
We have those placemats, too, in our house in Maine.
Perfect for navigation.