I have 2 D800s and unfortunately they only work in studio....

Never experienced something like it.. !

in that case I would think I nudged the af point selector with my nose and changed the focus points

which can happen sometimes i have had those things in the past

have you looked at it in NX2 and selected "show focus point" ?

Also in thatn case never and i say never focus on that black suit... which is where the center point is

right now.... do  the focussing in af-s mode and focus on the right face and recompose...

but dont move in and out... most problems we see with these open lenses is that the person moves after the mirror goes up slightly in or out....

Peter