Leaving the court

[dinoian]

I'm rereading the NFHS rulebook from 2011-2012 (most recent one I've got, each year I get the hand me down from my dad, so I'm not sure if the rule has been changed for 2012-13) and was wondering how some of you more veteran officials would handle this situation. Rule I'm referring to is 9-3, article 3, "A player shall not leave the court for an unauthorized reason. Penalty: The ball is dead when the violation occurs and is awarded to the opponents for a throw-in from the designated out-of-bounds spot nearest the violation."

Here's my scenario:

A1 shoots, misses, B1 recovers a rebound and holds for a few seconds, obviously not starting a fast break. A2 is winded and steps off the court and sits beneath their offensive basket.

By a strict reading of the rule, the ball should be dead there and B gets to inbound, while A can substitute. If this happens, what would you do? If it happens repeatedly, where team A (knowing this rule) repeatedly steps off the court to create a dead ball for subs, would that be considered unsporting behavior to you?