I just realized I left everybody hanging. The wedding went well, my only issue was with a flakey flash connection. The groom's parents were very happy with the photos I gave them and thanked me for my work. The bride's mother also shot the wedding and was, if not quite a "joy" to work with, at least cooperative and qualified. And "work", it most certainly was. I calculated I spent 6 hours at the venue, all of it on my feet. I got about 1/2 hour to eat, but other than that, I was working. My wife was a tremendous help as an assistant, I couldn't have done as well as I did without her help and compositional suggestions (yes, I told her this). And yes, "Uncle Bob" was there, shooting video of the vows from behind the celebrant with an iPhone!
My hat is off to those of you who do this professionally. I will be paying for a professional at my own children's weddings, of this there is absolutely no doubt. I also informed the groom's family that this had been my first and last job as a wedding photographer -- I told them I felt as if I had dodged a bullet and was quitting while I was ahead. So I survived the experience, and it left me with a much greater appreciation of the craft of the wedding photographer.