I'm driving though Iowa in a few weeks and would like to find this but I cant find any info anywhere on it .
So Toppling Goliath brews it in Decorah. They usually sell all of it in Decorah, at least they have a release party. Some very small amounts make it out of Decorah, but those cases sell out in minutes. http://www.tgbrews.com/site/ You can hit them up on Twitter @TGbrews or PM @TGBeerchief on here for specific info on it's release. I don't think it's out for a while.
Since it says taproom only, I am going to guess draft only. I don't think they bottle 1 offs like that (They haven't even bottled their main beers recently, either).