I saw an unequal adjustment of the tie rods when I did a steering rack swap for a guy. If the alignment techs are doing things right, you would ideally have an equal amount of threads showing on each outer tie rod. When it's up on the alignment rack they could spend the extra time to get a better balance of adjustment with the tie rods.
No shop that does alignments is going to take the time to even out the tie rod ends on the rack and then remove your steering wheel to change your steering wheel orientation. All GM vehicles that I work on at my dealership have a key in the steering shaft where the wheel attaches and the steering wheel will only go on 1 way. The OP got a shitty alignment and should get it checked to make sure his toe is still correct. Toe can be way out and the vehicle will still drive straight.