Very generous of them to do that for you.
I had a similar situation, while not exactly like that, over spring break.
I got this phone call from the Palace Theater asking if I would be willing to give up my seat in the mezzanine (for AAIP) to, I think, the director (or someone associated with the show) who wanted to sit up there. It was previews. They told me they would switch me out to another seat.
I called them up and they were very nice, thanking me for doing that. They told me to go up to the box office when I got to the theater. I told the gentleman who was working the line out in front and he was like, 'Oh, yes…follow me.' They opened up a separate window, changed out the ticket, and had the gentleman escort me to my new seat….which was a great one.
This is something that might not be uncommon, but it was a nice little surprise.
Not a CD, but a better seat!