Australian Speeding Ticket, but U.S. Resident...HELP?

Hey everyone. So I was studying abroad in Australia from February until June of this year, and upon my last couple of days of being in the country I got 3 speeding tickets. I never knew about them until now because Australia has speed detecting cameras and I just received the tickets in the mail. They are each at different times on the same day (8:41AM, 8:59AM, and 8:14PM) and I sped about 6km/hr, 4km/hr, and 5km/hr over, and I hate how this is a big deal and I am getting charged 3 tickets of $227. Whether I pay or not, is this ticket going to show up on my insurance? And if I was to not pay my ticket, would I be hunted down for this somehow? As crazy as that sounds...Thank you for any help, I really do not want to pay $700 worth of tickets.