Hasn't happened yet, but.......

[Mike51]

NFHS Some smart coach could use this to his advantage.

4th quarter. Team A up by one point, with 45 seconds remaining. Both teams out of time outs and the ball is on the A 5 yard line. It is fourth down and 7 yards to go and the clock is running. (3rd down was a running play that ended inbounds)
The ball is marked ready for play with 45 seconds remaining, so if the clock gets to 20 delay of game will be called.
As the play clock winds down to less than 5 seconds, the game clock is now under 25 seconds left in qtr.
Now A66, a tackle, commits a false start. This stops the clock and no matter if B accepts or declines, the clock starts on the ready and the clock runs out preserving the win for B.

Now I know that 3-4-6 says that the referee can order the clock started or stopped if a team attempts to consume or conserve time illegally.
My question is, is this a judgment call for the Referee? What if he determines that it was not intentional, should A get the win without having to snap the ball one last time.

Coaches can be clever and getting a player to false start intentionally and make it look unintentional is not very hard.

Any thoughts on this?