Well, damn.
Went into Costco and life was good. When I came back out, this was waiting for me. No clue as to what happened. The crack is slowly progressing.
It now looks as if I am going to have to replace the windshield. I intend to go with OEM glass.
Any recommendations as to who would be best to use? Independent shop or try and go through Toyota? Will be contacting my insurance company on Monday. Haven't had to deal with a windshield in over thirty years. Been lucky I guess.