Artificial Noise Makers/Grasping the rim

[CLAY]

Two questions.

1. Artificial noise makers are allowed in the gym only
A. During regular season games
B. During State playoffs
C. Never

2. Hanging from the rim is allowed when?

The reason for these Questions is as follows.

During a Varsity Contest a fan from the visiting team rings a huge cow bell everytime the home team shoots free throws.

During the same game a break away defense steals ball goes down dunks the ball(no one follows him) does a pull up on the rim.

How would make the call?