Say good bye to a very nice car. Or help me fix it. It was worse in 84

I Had the front end aligned and he didn't tighten the upper control arm bolts.

He didnt tighten.
might be just personal syntax, but i use "he" when speaking of a person, and "they" when speaking of a shop

i wonder if the alignment was done by a friend of the OP?
even though that wouldnt change who is legally responsible, it might change how the OP will pursue this
(i know i wouldnt go after a buddy in court like i might a shop)