Or you could just go with him to the "sappy" church. My step dad is a blue collar guy too, and he doesn't get emotional when he worships, but some people do. I would go out of my way to explain to him after the service the glory of true worship. Maybe saying something to the end of "Those guys looked kind of odd, but the fantastic part is they are worshiping the God that made them and saved them from an eternity apart from him."
Sometimes I feel like a lot of people really have grown cold to what Jesus really did. I think they no longer feel the sting that he died, and death hurts. Death really hits hard when you lose a best friend or spouse, and Jesus was far more loving than either of those. Not only did we lose a best friend though, we killed him. He died by our hands, I/You/Everyone killed him.
2 Samuel 6:22 says, "I will become even more undignified than this, and I will be humiliated in my own eyes." You should explain to him that If someone gets emotional over God by no means is that sappy, that is beautiful because they are giving glory to God; who can blame them for raising their hands or shouting, I would become even more undignified in the eyes of man so that I may praise God. That's what I would say to him, I would say a good explanation will do him better than an acidic environment where the worship is just running through the motions.