FCI has changed so much, since my day.
I recently ate at L'ecole (the restaurant at FCI). Back in the day, the food was prepared by the students, and the front of the house service was conducted, by the students. I engaged in a conversation with the waiter (thinking he was a student) and he told me that most of the restaurants operations are by professionals. No more hands-on training. Very sad.
Yikes!!! On your wedding day the last thing anyone should ever do is to divert any attention from your joyous day!! I agree it was tacky, rude and unacceptable. I would request compensation, or I would write a letter to the local newspaper, warning potential brides and grooms as to this policy.
Hope your wedding was spectacular, this aside. :)