About all I can say about AAMCO is that growing up, they had a very memorable radio commercial. Well, perhaps that overstates it, as the commercial per se wasn't all that memorable, but the tagline made up for it. The announcer would advise the listener to bring his car to AAMCO with the hook:
That little car horn beep in the middle of the business name would get my attention every time.
When commenter John mentioned that this place might be closed, I went to take some pictures and wasn't sure myself. The lot was certainly for sale, but all the signage and fixtures were still in place, and I thought they might be carrying the business on until they actually had a buyer. In the event that was not the case, and they closed shop sometime in 2012, early on enough that they are not listed in the February 2013 phonebook.
(Hat tip to commenter John)