I can say my AAA South has covered me multiple times outside my region in NJ & PA. When we lived in NJ they covered us outside our region when we had a tow vehicle breakdown in VA. They've even towed car owned by others. That's what I like about AAA. They will tow or assist any vehicle as long as I am there with my card and I am rarely ever asked for my card.
The one time in PA, I was towing our HTT when my tow vehicle broke down. AAA towed both tow vehicle and trailer to my parents which was 99 miles away in NJ. The only thing I paid was the tolls ($9) and I gave him a $20 tip since I knew he had to go back to PA in NJ Shore traffic on a Sunday afternoon.
I'm not trying to persuade anyone or push AAA onto anybody, just posting my experience being outside my AAA region.
-Michael