As mentioned on another forum, The County may not prosecute but a State Trooper would put the hammer on you.
And the State's Attorney, who is elected at the County level here in IL would decline that prosecution in a heartbeat if he wanted to be re-elected.
The DuPage County State's Attorney already partially invalidated Illinois' stupid anti-carry laws a few years back by publicly announcing he'd no longer prosecute people found with unloaded firearms in fanny packs, backpacks, etc.
Not all of Illinois is like Cook County. Once you get away from that den of insanity the rest of Illinois is pretty darned conservative.