Face Mask Question

[shave-tail]

4th. down and goal to go. The ball is on the 5 yard line. The ball is snapped and the ball carrier is on the 3, at this time there is a "personal foul, face mask". The ball carrier is stopped on the 2.

My question is if the offense accepts the penalty do they also get to replay the down? This would mean that the offense would get the yardage plus the down over again. If you can, please quote the rule book....my regular friday night crew is scraping over this.