I just called the Attorney General's office. Mind you, I didn't talk to Bruning directly, but one of his employees. He seemed to know what he was talking about. The "official" word from him is that carrying a gun into an establishment, such as the SuperSaver in question that houses a financial institution, is one of those things that is not clearly defined by law. Whether or not charges could, or would be filed would depend on a number of circumstances, including, but not limited to the following. Proximity to the actual bank or bank area. If you were at the bank counter transacting business with them (or robbing them), you would probably be charged with a violation if discovered. If you were two hundred feet away buying a bag of peanuts, you would probably not be charged even if discovered. The interpretation of the law and circumstances from the perspective of the law enforcement officer on the scene. If he was called because a store employee noticed a bulge under your jacket when you reached for the pickels on a high shelf, and you were doing nothing else wrong or illegal at the time, and you had a clean record, and you cooperated with the LEO when confronted, you would probably not be charged. If you had, three quarts of whiskey under your sweatshirt, a record a mile long, and got pissy with the LEO when questioned (like calling him/her a racist), you could likely be charged. If you did end up in court, all of these things would come into play when either the judge or jury arrived at a verdict.
It's a crap shoot. Most likely if you keep your distance from the bank area and don't do anything suspicious and cooperate should you be contacted by an LEO, you have nothing to worry about. So, don't be eating a few of the grapes as you pass by the produce section.