NDSU also won five championships in a row...
You have to make football an event if you want more people to show up (and see the link posted above, that doesn't even always work). Right now it is not an event. It's a toss up which football team will show up and whether we will have a chance to win. Harassing, intimidating, and shaming people who don't go, don't tailgate, don't cheer loud enough isn't going to do it. Perhaps instead trying talking at work on Monday about how awesome the game was, how delicious the food was, how fun the atmosphere was... Don't bully people into going.