@BPF: I think you've hit on the scientific explanation of something pretty significant. GPS dissolves TLAR skills, aka common sense.
I took an Uber yesterday back to Santa Rosa airport from the Peanuts museum (summary: don't bother) and we took a complicated route which included a narrow, hump-backed bridge. The driver explained that huge trucks routinely get stuck on it following the magenta-line equivalent to a factory further down the road - which can, of course, be accessed without narrow bridges via another route.