Just because it says 312, doesn't mean it's from Chicago. Many scammers use spoofing and it can show any phone number they want. But the way, I'm from Chicago and I'm not a criminal or a dirt bag. Who are you to judge?
Yes everyone is talking about it (agreed), but I have yet to see any concrete evidence of anything being carried out. Do not misunderstand me, I am not saying be careless. Actually by not answering unknown callers (which I advocate) you won't even have the "yes" issue.