Possible illegal touching situation

[kentref]

Last Friday night 8-player varsity game.
QB drops back and attempts a middle screen pass (forward pass) to one of his running backs. The running back collides with a B lineman behind the neutral zone and the pass sails over his head and hits an A lineman in the back. The A lineman is in the neutral zone when contacted by the ball.

7-5-13 indicates, "An ineligible A player has illegally touched a forward pass if he bats, muffs or catches a forward pass while he is in or behind the neutral zone, unless the pass has been touched by B."

Our play was a screen pass in which the ball was not supposed to go beyond the neutral zone. My question: In pass play situations where there is an expanded neutral zone involved, if the A lineman had been say, a yard beyond the neutral zone but still in the expanded neutral zone, would he have been guilty of offensive pass interference if he was making no attempt to catch/muff/bat the ball but the ball hit him in the back?