My parents and in-laws have all reached that time in their lives where their driving skills have diminished to the point that they should not be behind the wheel. A decade ago they all agreed that when the time came, they would gracefully acknowledge it and stop driving before they killed anyone. In fact, my father drove out from Colorado three years ago because he knew it would be the last time in his life that he could do so. Now that the time has come, all of them have modified their views. Does anyone have any success stories to help me here? Actually, even failures can help, in the sense that no one wants to be "that guy" who drove into a crowd of people because he got disoriented.
By the way, here's how bad it has gotten. My father-in-law was driving home with my mother-in-law. They woke up at an intersection in Silicon Valley at a red light. They had no idea how long they had been sleeping. Apparently, they fell asleep while the light was red and didn't wake up for several cycles of the signal. I'm sure there were many car horns that they didn't hear. He also drove into his garage door, which is one of those things that seem to happen at both ends of one's driving career. (My sister did this on her first drive ever.)
If this doesn't qualify as cycling related, I apologize. However, incompetent motorists does seem to be a recurring theme here and I would appreciate any help or inspiration that anyone can offer.