Same thing happened to me...
One time, I was pulled into a task force team to fix a problem. After a few days, found out was the problem was, fixed it, implemented solution, made a presentation. So, I stopped going to the daily meetings. Well, the following week, they decided to present me with an award. During the meeting time, I get all these pages (we carry pagers) saying things like "Where are you?" and "Congratulations". I didn't know what was going on. Found out later about the award.
Another time, was a bit worse. I left early, didn't think it was too bad, since we were having a department meeting that afternoon. I figured I wouldn't miss much, lots of blah, blah. Well as I was driving home, I get a bunch of "Congratulation" pages. Thought it was a joke from a bunch of different people. Later found out that I was being recognized for a different award I had gotten 2 MONTHS prior. :huh:
I now get hints about making sure I attend meetings like that with "You are making it to the meeting, right?" or "We need you to be at this meeting."
So what happened afterwards? Did he present you your certificate that afternoon?