A noying

I was away when this hit the headlines - but apparently anyone wearing a t-shirt that carries an "annoying" message during World Youth Day (or Days) - happening here in Sydney - now - can be prosecuted. I'm not sure what the penalty is if one is found guilty of being annoying - and I'm also not sure if the following wording would have seen the light of day without the new t-shirt laws: The Pope touched me ... Down Under. Also, what is annoying - and who gets to decide? And will this annoying law continue after the Catholic Youth leave our shores?