PreGame Rim Grasp and Pull

[Adam]

Line them up for the jump ball, and just prior to the R tossing the ball up in the air, blow the whistle and give the T signal. Then, you ceremonially look angry.

Honest answer:
Whatever feels comfortable. Personally, I would just walk over to the coach and let him know what #25 just did, and remind him that the free throws come with a loss of the coaching box.
Inform the opposing coach as well, and remind him that he can pick any shooter he wants (even from the bench).
Remind the table that this will count towards the player's five total fouls, and will be added as a team foul as well.