sophiegirl,
I want to join in wishing you the best. I agree that it would be very nice for someone to have said something, but it would really take an extraordinary effort to remember every guest and situation.

I had the unfortunate situation where I was on the phone with emergency services as an elderly woman passed away in the store where I work (yes, I was calling for her). I remember the grief on her husband's face, her wheelchair and a few other details, but I wouldn't recognize the man today. I wouldn't be able to express the sympathy I do have for him. It isn't malice, I just can't remember everyone and every situation - no matter how traumatic.