Interesting, thanks for taking the time to type all that. Straight off the charger it read 12.7 but I did not test it again after I took it out of the car. I was surprised at the 11.99 but it does somewhat coincide with their reading of 63%. I was going to pull the alternator and have them test that when I picked up the battery but I decided just to wait and see what happens with the battery first. I'm thinking there's a chance it simply won't charge up much more and they'll deem it bad and give me a replacement.

Of course none of this really explains why it died in the first place.