Illegal Kick Resulting In a Safety

[sorrydog]

K9 is punting from his 5 yard line. The snap goes over his head and is bouncing around in the endzone. While in the endzone, K9 illegal kicks the ball out of the back of the endzone. What are R's options in they accept the penalty? If they decline it?

I thought I knew how to handle this type of play but, after this past Friday and the ensuing discussion in my association, I'm not sure I got it right. I've read the rule book, case book, and Reddings twice in the past few days and I think I know the correct administration & the rule that supports my decision but I want to know all of your thoughts. What do you think is the proper administration & why? What, in the rule book, supports your decision.