I have a similar story. I played in an ‘80s cover band and we did a wedding. Fortunately for us, it was the bride and groom who picked us. However, the bride’s father, who I guess was paying our fee, was not so impressed. He plainly wanted the usual wedding fare, whilst we played things like Owner of a Lonely Heart. His face was not a picture.
That said, I played in a band that did classic wedding stuff and we played one gig to a few small kids doing the sliding across the floor thing that they always do, the ‘grown ups’ (italics explained shortly) all stayed in the other room, where the food and booze were. They did eventually move into the ballroom, but only to have a punch up. One assumes that staying in the room with the booze for hours finally had an effect.
Always hated playing weddings. If you play a pub or club, it’s more than likely that folk have come to see you, or are hanging around because they like what they hear. Weddings, on the other hand, is where you are the hired help and are often treated as such.