I've only been in an Autozone a handful of times, but this location exceeded my expectations last night. I started a hectic day with a dead battery and had to call friends to save me with jumper cables (I'm going to insist my future kids own & know how to use jumper cables because I don't have the foggiest idea how to do so!!).
Miguel tested my battery. When the results came back positive for a working battery, he made a suggestion to troubleshoot for alternator issues. He asked if I had 30 minutes to drive around. He said if the battery increases in percentage after driving around, my alternator is okay as well! I told him I'd do anything to find out the issue. So, I set about driving around looking at Christmas lights to get the job done.
Thirty minutes later and an additional test and VOILA! I'm in the clear. We solved the issue. They gave me some hints to make sure it doesn't happen again. Nice, helpful AND knowledgeable--the trifecta in auto store customer service!!
Ps. They cannot change the battery on a BMW, but they will do what it takes to tell you what is going on with any car issue. I was fine with that--