Congrats on your successful finish!!! Wow!!! I am so impressed that you could do this. I am inspired.

I hope you have pictures so you can look back on this day and also for your kids. Just picture them telling THEIR kids - ok, here is your grandma and her bicycle - she rode 67 miles this day!!!
And write some notes on the backs about how it felt... I just say all this because I was looking at some pics over the weekend of a friend's mother and her days as a horse-woman (in her 20's). She had written notes on the backs of them about how proud she was of her horse, and how it felt to win. We all enjoyed it!

As for the bad news part - try not to dwell. Those things are few and far between. But stuff happens, so we should appreciate each day, and do our best to be careful while still enjoying life.