I do not know if Ohio has a law saying that the manager is the only one allowed to ask you to leave, but when I worked for loss prevention with a national retailer (in KY), I could make that request. There were a few that thought they knew "the law" but kept moving. A couple got to take a ride in a police cruiser. My point is only that it is not the time to argue while in the store (and possibly trespassing at that point). Put the merchandise down, go home and make some phone calls. If the "rent a cop" was incorrect, be sure they know his actions lost them revenue. If he was correct, make sure they know their actions lost them revenue.