Worst customer service ever. Was just at the blue diamond store because by battery died.  Before shutting my engine off, I  asked an employee if they will install the battery and said yes. The person at counter sounded uninterested when I approached and just instructed me rudely to go pop the hood so another guy can do a diagnostics. They told me I need a new one. After waiting patiently for another 45 minutes, I was told that the manger said they won't be able to install the battery because it will take 45 minutes for them to do it. He added they cannot spend too much time just doing that for me.  And what am I supposed to do? They said I can buy the battery and install it myself. Why is there no zero star rating - it really deserves a negative!