End of Period

[tribeast13]

NBA rule no. 5 (section III) states that:

Section III-End of Period
a. Each period ends when time expires.
EXCEPTIONS:
(1) If a live ball is in flight, the period ends when the goal is made, missed or touched by an offensive player.

What happens if the ball is in flight, then time expires, then the ball hits the ground, then bounces back up, and goes into the basket?

I know this sounds ridiculous but I must know!!

Thanks!