Unreal, since when is it a crime to use offensive language in public, i hear it all the time from aussies. So i had to look this up
(quote)
Swearing in Public is Against the Law (Really)
In a day and age where swearing has become so commonplace, that most people wouldn’t even flinch when someone drops a swear word, it’s remarkable to think that Queensland, New South Wales and Victoria all have laws regulating offensive language. The issue has received some prominence lately when a football player fronted court for offensive language. So if someone is about to go on a verbal blue streak in public, be careful, you may be in breach of the law.
What is a summary offence?
A summary offence is not indictable, meaning there is no jury, and the case is heard by a judge or magistrate. Most summary offences relate to public nuisance, covering a range of offences such as: vandalism, begging, flag burning, and even interfering with homing pigeons. Summary offences in Queensland, New South Wales, and Victoria are broad, and quite surprising what is considered an offence, such as swearing.
http://www.findlaw.com.au/articles/4251/swearing-in-public-is-against-the-law-really.aspx