Extension of Periods
ARTICLE 3. a. A period shall be extended for an untimed down if one or more
of the following occurs during a down in which time expires (A.R. 3-2-3-I-VIII):
1. A penalty is accepted for a live-ball foul(s) (Exception: Rule 10-2-5-
a). At the option of the offended team, the period is not extended if
the foul is by the team in possession and the statement of the penalty
includes loss of down (A.R. 3-2-3-VIII).
2. There are offsetting fouls.
3. An official sounds their whistle inadvertently or otherwise incorrectly
signals the ball dead.
b. Additional untimed downs will be played until a down is free of the
circumstances in statements 1, 2 and 3 of Rule 3-2-3-a (above).
c. If a touchdown is scored during a down in which time in a period expires,
the period is extended for the try (Exception: Rule 8-3-2-a).
If the official incorrectly signaled the ball dead, then an untimed down is appropriate. That's the rule that has me curious. I don't know if that's happened one way or the other. I'm merely stating contrary to our riled up little bulldog that there are other circumstances for an extended period after time has expired (see above).
@Dirty_but_Dazzling, you clearly stated the only reason for an untimed down was for a defensive penalty. You were wrong. Own it. Sorry to break it to you, but you can't have it both ways. You can't be right and wrong at the same time. You also said "NO TIME = END OF GAME". Wrong again mama...