The 'Bandidos' are being very closely monitored here in Queensland. Three people in a convoy on motorbikes, with or without colours being displayed, is currently against the law. This sort of thing won't happen here in Queensland for a while.
Well we do have the advantage of a constitutional and legal framework that evolved from our time as a prison colony, and that as a result is very short on actual rights.
As a basic rule, it is fairly safe to assume that anything that is not mandatory in Queensland is prohibited.
Australians derive their freedom not from the law, but rather from a cavalier disregard for the law.