Rude manger

I had found a pair of boots at another shop and I was hoping I could get them at a better price at the Adidas store. We arrived at 14:50 and they were busy closing the doors. I said I knew what I was looking for and would only be 2 minutes. After we went in, another customer arrived with her child and was allowed in. The manager shouted at the guy across the store \What are you doing?! Lock that door!"My friend and I"