AutoZone review: customer service complaint

I went to 1734 S. Richey st. Pasadena tx. 77502 today around 7pm. I went in and asked to purchase a radiator top. The "manager" told me that he could not find a radiator cap and that I needed to buy the whole package for $52. I told him that i only needed the cap and he stated that is all they had in the system. I then told him that what else could I use and he said that there was nothing else and then I asked for corporates number, he told me it was outside on the door, so I then went outside to look for the number he walked behind me and took pictures of the truck, I then told him that the number was not on the door and he told me to get out of the store. He then called the police on me and thru out this whole time he was being rude and he did not want to provide to me his name. I then checked that stores address and saw that they do have in stock radiator caps. I need someone to call me back because this was very humiliating. Please call at [protected]