What is your dads Saturday night may be someone else's Monday morning. It's always good to consider others, not everyone is on the same schedule. I know if I had to be up in a couple hours, or I had young kids that couldn't sleep, I would have damn sure shut down the wedding as well. It's not always the case the people are trying to kill the buzz.
As far as the brewpub, it sucks but it's also hard to be real sympathetic. Why would they get this far along in their plans without contacting the neighbors? "Hey guys, we want to open a brewpub next door. Is that ok with you?" I personally wouldn't want to live next to what is essentially a bar. I value my peace and solitude above all, and if something like this was trying to open up on my street I would also do anything I could to stop it. However, if it was in a different part of town I would obviously go out of my way to support it. I don't agree with their passive aggressive techniques though. They should have communicated if they were upset.