Clarification on Free Throw Rule

[actuary77]

Rule 9-1-2(d) says:

"After the ball is placed at the disposal of a free-thrower:
(d) The free-thrower shall not enter the semicircle. The free-thrower shall not leave the semicircle before releasing the free throw."

Situation:
R is ready to administer the free throw. The designated shooter is behind the 3-point arc still talking strategy with his teammates. R decides to put the ball on the floor at the free throw spot since the shooter is unduly delaying the game.

Is putting the ball on the floor placing it at the disposal of the free throw shooter? If it is, then according to the rule above, once the shooter enters the semicircle to pick up the ball, then it's a violation, correct?

If so, then is it implied by this rule that placing the ball on the floor when the shooter takes a long time to take his position essentially forfeiting the free throw?

Or am I reading this rule incorrectly?