Character mistake: When the Legends are talking about Chicago in the 20's, during prohibition, Nate says there was "illegal drinking." But prohibition didn't make drinking alcohol illegal. It was only the production, importation, transportation, or sale of alcohol that was illegal. As a historian, Nate would know this and not make that statement.
Suggested correction: The term "Illegal drinking" is actually in reference to people going to locations that were selling alcohol illegally to drink it, hence it is illegal drinking.
That still would not be illegal drinking.