Subway review: Manager called the police for parking in invisible, unmarked employee parking in a general parking lot

Tonight my wife and I attended the Mexican Restaurant next door to Subway 122 Murphy Hwy #101, Blairsville, GA 30512, and it was pouring rain so I dropped my wife off at the door and looked for a parking spot that would allow me to get out of my car with minimal soakage. I parked in the rear of the building in a parking spot that pulled straight in. NO, No Parking sings, No employee parking signs and no Handicap parking signs. I met up with my wife and entered the Mexican Restaurant. Next thing I know a young man came into the lobby of the Mexican Restaurant and ordered that I move my car or it would be towed. Stated that I parked in the employee parking. I stated that it was pouring rain and he expressed that I either move it or be towed. He advised that he was the store manager of Sub Way. Let me also state that the parking lot is common area for all businesses. So, to avoid conflict I went to move my car but also took pictures of where it was parked, then he came out and started calling me a crybaby, once again telling me to move or be towed all while getting wet. I got upset telling him that I had son older than him and that it was disrespectful. He then stated he was calling the cops. I told him I was not breaking any laws and moved my car. I asked his name and he refused to give it. I move it getting soaked and then entered the Mexican restaurant to join my wife with frustration. She and I talked about his Identity so I could file a complaint with store owner, so I walk over and took his picture for identification. Shortly after the Mexican Restaurant all became quite because two Blairsville Police Officers came in looking for me embarrassing my wife and I as we were staired down. I asked the officers if we could go outside and talk and they agreed. Very professional officers! They advised no laws were broken and I had every right park where I was, but the manager from this Subway was trespassing me from his store which is legal in Georgia.
As a store manager you can trespass someone because you don't like them. "Discrimination" This manager hunted me down with no legal cause, publicly embarrassed me "Defamation" and my wife in another restaurant, called the law and put my name on a record, Libel" with the local police just to make up his own rule and prove he was a store manager. He left his store entering another business approximately 150 feet away to pursue his issue in a town that parking spot are normally not a problem.