I would edit 6-3-2-d:
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d. If Team B accepts the illegal touching privilege on a try, or in an extra period, the down is ended, any score by either team is canceled, and the ball shall next be put in play by a kickoff, or at the succeeding spot in extra an extra period.
And, if I wanted to get really picky:
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d. If Team B accepts the illegal touching privilege on a try, or in an extra period, the down is ended, any score by either team is canceled, and, if play is to continue, Team A shall next put the ball in play by a kickoff (not in an extra period), or the ball shall next be put in play by snap at the succeeding spot in an extra period.
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"..., if play is to continue,..." accounts for the possibility that the winner of the game may be decided by the result of the previous down in question (game over), or that 'regulation' play may have ended in a tie (play will continue with/in an extra period).
"...Team A shall put..." supports the ruling that acceptance of the illegal touching privilege, in these cases, does not (in, and of itself) award the ball to Team B for the next down.
"...(not in an extra period),..." confirms that a kickoff only follows a down that occurs during periods 1 thru 4.
"...by snap..." confirms that the next play will be a scrimmage down (in an extra period).
Pick me apart.
Robert