In case you were unaware, a couple of days ago the Illinois House voted to move Illinois to ticket-based penalties for possession of up to 10 grams of marijuana. It's not a done deal, though. Governor Bruce Rauner still has to sign off on it.
If you take the time to look over the books in any given state or municipality, you'll probably find a bunch of laws or statutes that just don't make a lot of sense. Illinois is no different.