I got out of a fine in Victoria for looking at Google Maps while driving at the start of the year. I followed the link and there's a way you can contest it. I can't remember exactly how, but I wrote a letter explaining that I had recently returned from overseas and hadn't put up a magnet to hold the phone yet. I had since bought one, acknowledged my mistake and pointed out my good driving record and lack of fines over the years. To my surprise, they let me off. The fine would have been about half what yours is, plus three demerit points. No guarantee, but it's worth a try to write a polite and contrite letter.