[glangdale]

You could easily get put away for "contempt of cop" here in Australia. This goes double if you are the wrong sort of person to talk back to a cop: e.g. indigenous. For a while there was a holy trinity: "disorderly conduct" (anything they wanted), "resisting arrest" (when they grab you randomly) and "obscene language" (when the person says 'fuck this').

Maybe things are better in NZ but I would not experiment with "contempt of cop" here in Sydney unless I had a nice clear schedule and didn't mind spending a bit of time behind bars.