88; jerky accelerating

I just took my '88 in to get a brake inspection. It was really jerky when I stopped and when I started.

They replaced the pads, rotors, calipers and the brake line

I let the car sit like 3 hours, I went to start it and the car wouldnt go forward, the engine would rev, but it was like the wheels were stuck,

Finally, I reversed a few yards and put it back in drive and it moved forward ok, no real noticable problems driving.

any ideas?