Steering gear break in period?

No offense, but I think you found a shop that just likes throwing parts at things and taking your money...
Alignment specialist confirms: Bad power steering box | For A Bodies Only Mopar Forum
Power Steering box turns hard left when steering wheel released - yikes! | For A Bodies Only Mopar Forum
and many other threads on "adjusting centering valve". Search it.

That was my fear. A big clue was when I picked it up and the mechanic said three people test drove it, himself included, but I could immediately tell the steering wheel was ~45 deg out of alinement. I brought it back immediately pretty peeved and they did fix that day with no additional cost but come on.. The bill certainly was pretty hefty which leaves me rather upset getting a car back with the steering feeling worse than when I dropped it off.