Glad you are OK Bob and had someone with you.
I'll also add that a lot of people just don't give a flying fig. I make a point of stopping for someone broken down, or looking like they need help, even when on my bicycle. A friend thought I was looney tunes for stopping to try and help, "they could be crazy".
I often can't help, but at least someone giving a toss might make their day better. I despair when someone asks if you are OK when stopped and don't wait for an answer as they whizz past! Like a tick box to make them feel better. FFS.