My question involves criminal law for the state of: IL.
Few days ago I was in a store of an electronic devices chain, and testing some devices at one of the exhibition desks I noticed that one of them was detached from its security wire. Having realized that that area of the shop wasn't covered with ceiling cameras, I had the stupid idea to take the item from the desk. But walking to the exit I immediately thought that it was a bad idea, and really scared I left the device on a random shelf. Then I regulary paid (with my credit card!) all the other stuff I took. Nobody stopped me or followed me in and outside the store.
Now I'm getting concerned. My questions are:
- How often do stores watch past days camera records looking for facts like that?
- What happens if someone took the device from the shelf where i left it, and unfortunately some camera catched me taking the item from the desk but not leaving it on the shelf?
- Can I be pursued for having taken something even if they cannot demonstrate that actually I left the store bringing it with me?
- Eventually, how likely will I get in trouble for that? And in this case, when should I expect to be notified about that?

Please, give me an answer as soon as possibile. I'm really scared and concerned.

Thank you in advance