[emt1134]

I'm going to take a stab at this...

1) Ask your daughter's bf to reinspect his work at the ignition switch...if you are lucky, he may have simply misaligned something...
2) Ask you daughter's bf if he touched the shifter at all when he was doing the work... there is a high probability of the answer to this question being "no", as you do not need to remove any portion of the center console to access the ignition switch...
3) there is a little screw which secures the shifter handle to shaft portion...it is not uncommon for this little screw to become loose, and cause the problem you are having with your shifter... this is any easy fix, and your daughter's bf should be able to accomplish the task of tightening the screw, given that he has a special set of bits called "torx bits"...

hope my sampling of deductive reasoning helps a bit lol...