Tire discounters can’t align my Dart.

They didn't do what you paid them for. If they couldn't figure out how to do a basic alignment on an older car, they shouldn't have taken on the work. And it shouldn't have taken a week for them to determine that they couldn't do the job. I'd at least go in and ask for the shop manager for a discussion about it. Just remember - being nice and cordial in a situation like this can go a long way.