Foul on scoring play

[Warrenkicker]

Well if your happy with the answers then we're happy. I still don't see where you cited a play where A fouled in the endzone and then B got the ball and returned it for a touchdown. In that play B has the choice of accepting the penalty and taking the safety or declining the penalty and taking the touchdown.

However my original citing of the case book play exactly covers your first play (the illegal shift) in that the foul occured before the change of possession thus the penalty must be declined to even keep the ball much less the touchdown.