I spoke to a representative from their Corporate office a few days after writing this review. Within 30 minutes of that call, the Service Manager called to apologize and tried to make things right. From that point on, my experience was excellent.
I got back my car today with a replaced master cylinder. Now, my car shakes violently while in idle (making a loud rattling noise) and the battery is oozing bubbles. Before bringing it in, my car was silent, smooth and the battery was pristine. Of course, they cannot get me in for 11 days. 11 DAYS! They said it was worrisome that they caused this damage after replacing something but said there was nothing they could really do for 11 days. Of course, their warranty only covers 7 days for a rental.