Thanks to plk123's advice, I was recently in Gene's Sausage Shop, and bought some there myself. I believe I also saw it at Avondale Liquor when I stopped there, as well. Avondale seemed to have better prices, on average.
Avondale does have this as well as a number of other Polish/czech beers, my favorite store in the whole world. They rotate their stock often too, some of the Binnys or other maga-stores have beer stock thats been in the store for two years or more, something you really have to watch out for.