[JaredL]

Again, I don't see how this would work since the penalty is before the play starts.

I also think there would be big risk of injury if the defense gets a free play.

Also, as I said before I think you can actually decline the penalty but the rule is that there is no play because it's a dead ball foul. So it's like the timeout when they freeze the kicker. The whistle blew before the ball was snapped so there was no kick in that sense.