A22 is covered in paragraph 1
Stationary back partially inside the tackle box and partially inside the second man from the snapper
Irrelevant, for this specific block. Both A22 and the ball were outside the tackle box when the block was made, AND the ball carrier was not clearly beyond the NZ, restricting A22 to blocking 10/2 and "N-S," or toward the sideline.
Judgment as whether the ball carrier was clearly beyond the NZ or not, but if the description, "...just as the QB (ball carrier) reached the NZ..." is correct, I would say it is in question, and, when in question, it is a foul.
Robert