Holy Trumpet Lawsuit

South African soccer fans often make noise with an plastic trumpet instrument called the vuvuzela. (See video of vuvuzelas in action.)  But a religion called Shembe claims it as its "holy instrument." They object to rowdy soccer fans defiling their holy trumpets, and have filed a legal action to stop it from being played at World Cup games. The World Cup organization disagrees, and says that

the noise is an important part of South Africa's footballing culture.

What's a sporting event without spectators finding ways to make loud obnoxious noises? Who will win the battle of the holy trumpet?