Perhaps something as simple as saying no to the LP guy when asked for his receipt. Remember the interpretation of the law is up to the judiciary. Without looking up any specific cases, an Ohio court may have ruled that showing a receipt to a security person is a simple and non-invasive thing to do and that refusing to show a receipt is “suspicious activity.” Also perhaps his version of the events might differ from the store employees who may have seen activity that he considered suspicious that the blogger was unaware of. Public policy is a huge driver of legislation action and judicial decisions. It would not surprise me one bit if a court has ruled or would rule that a customer being asked to show a receipt from a store by a store employee, while on the store property voluntaily entered by the customer (perhaps seeing such security obviously posted at the front door upon entering or nearing the entry), would not be an unreasonable request and the potential benefits of such request (reducing shoplifting and increased costs due to such activity) would greatly outweigh the minor intrusion upon the customer.
I’m not saying that either the blogger’s or store employees’ actions were right or wrong, just that it really is not a black and white area, but instead lots of gray and a lot of the posts in this thread have been saying a store absolutely cannot… blah blah blah, when in fact they often times can.