i would tell them im taking to what ever place "you want to take it", not them. and tell them they are paying for it. plain and simple.
its unreal that they cant even get the front end close at all.
their equipment is either f'ed up. or the mechanics don't know how to use the equipment.
i just went to firestone for a alignment, they give you a print out of where the wheels were when it came in, and after they are done.
the last shop i was at had my toe in at -0.040 to much on both sides. thats to much toe in. should be in the range of -0.01 to 0.08 now my car rolls straight, and seems to roll smoother as well.