Every state in the midwest has one or more goofy liquor laws, most of which have a religious history to them.
Kansas: 3.2 beer in grocery stores, 5.0 beer in liquor stores. No booze sales on Sunday from liquor/grocery stores, but bars are open.
Oklahoma: Grocery stores sell only 3.2 beer (no stronger beer, wine, or liquor), but they can sell it cold. Liquor stores sell everything else, including stronger beer, but it must be warm. EVEN WIERDER: if a brand of beer is sold at a grocery store (3.2), you cannot buy a 5.0 version of that brand in a liquor store. (In other words, 5.0 Budweiser is not available in Oklahoma.)
Missouri: No liquor sales of any kind before 12 noon on Sunday. (Used to be dry all day, but when the Chiefs became popular in about 1990, the legislature fixed that rule pretty quickly.) Good place to find a crowd of Johnson Countians (Kansans): a State Line liquor store at noon on Sunday during football season.
Illinois: very funky rules about purchasing kegs (I think it's a mix of state and local laws). You have to fill out a form telling The Man where and when the party will be, how many people will be there, etc. Basically, what time would you like your party to get busted? I'm sure the intentions are all good (discourage underage drinking, drinking/driving, etc.) but it comes off as very KGB-ish to me. In practice, I've been to a few keggers in Illinois and The Man rarely shows up. Perhaps it's all intimidation. (Note that the rules don't apply if you walk into a liquor store and buy 15 cases of crappy beer. Only kegs.)