Fair. Yea I just started with 40K seats and the slashed it to a bit less than half, never checked the real number of cars as I was just winging it because, like you said, the total number wasn't the point. But yea, I'd guess on a near sellout game on a weekend that more than 1/12 leave above .08. I generally agree with your points on your low guess, I just think getting to .08 is easier than the avg person thinks and why I'd guess higher. And of course WI drinking culture would move up national polls like you mentioned, we are way different here with it.
But who knows, we're all just throwing stuff out there guessing, the main idea was just that they can't be a party to pumping out even more really drunk people than they already are, considering the police are already giving them a huge break letting it operate the way it is. If one thinks about its kinda crazy, I mean you have a ton of cops just standing there doing nothing as lots and lots of people drive right by them after drinking for hours, and they know it and just let look the other way. Part of WI drinking culture. I recall last year I went with some friends from the UK, they couldn't believe how the driving was just no big deal. And UK people are the rare bunch that drink as much as WI people.