I sent the following email to RR, let's see if he responds (never tried this myself).
1. Does the A.R. 3-4-4-V supercede the 10-second subtraction example from 2011 (play 19)?
A.R.: Fourth quarter with the game clock running and Team A trailing in the score. Second and 10 at the B-30. Guard A66 in a three-point stance misses the snap count and lurches forward, committing a false start. B77 then commits a deadball personal foul or a dead-ball foul for unsportsmanlike conduct. The game clock is stopped with 8 seconds remaining in the game.
RULING: The game is over because Team B will accept the 10-second runoff associated with the false start. Thus the penalty for B77’s dead-ball foul is not enforced.
Note: If this action occurred at the end of the first half the penalty for B77’s foul would carry over to the second half. Because of the 10-second runoff, by interpretation the dead-ball foul effectively occurs after the half has ended and thus the penalty is thus carried over.
2011-19 example: Second and 5 at the B-30. Ball carrier A22 is tackled at the B-28 for a two-yard gain. A few seconds after the ball is dead A78 commits a personal foul or a foul for unsportsmanlike conduct. When the officials flag this foul and stop the game clock, there are 7 seconds left.
RULING: The dead-ball foul by A78 causes the clock to stop and the 10-second subtraction applies. The game is over.
NOTE: If this happens in the second quarter the penalty will be enforced at the start of the second half.
2. If the example 2011-19 is still valid, do all dead-ball foul penalties carry over to the second half if committed at the end of the first half?
Example: Second quarter with the game clock running and Team A trailing in the score. Second and 10 at the B-30. Guard A66 in a three-point stance misses the snap count and lurches forward, committing a false start. The game clock is stopped with 8 seconds remaining in the half.
RULING: The runoff is accepted and the half is over. Does the 5-yard penalty carry over to the second half kickoff?