They talked about a guy who did that in our OHIO CCW class. Didn't draw, but just showed the guy in a Walmart parking lot. He went to jail. The story went that the CCW holder pulled into the Walmart parking lot and accidentally bumped the vehicle in front of him. The owner of that vehicle was on his way out of the store and saw what had happened. He approached the CCW holder in the parking lot and said, "Hey, you just hit my car!" The permit holder didn't draw but showed that he was armed and then walked into the store. He said he could sense that he was being watched in the store. When he came out of the store the local PD was there to arrest him for "brandishing" his weapon.
"There are hundreds of millions of gun owners in this country, and not one of them will have an accident today. The only misuse of guns comes in environments where there are drugs, alcohol, bad parents, and undisciplined children. Period."T.Nugent