Thanks heaps for the advice, ill keep steve's in mind next time i have a problem (fingers crossed not for a while).
Your right about the cops, i was driving back from the lappo one night and one of the pajero 4wd cop car things was infront of me, went about 200m, he pulls over and lets me go pass then pulls in straight behind tailgates me for bout 1km then gives up and pulls off, then within 30 seconds a highway patrol car pulls in behind me from a backstreet and tails me for about 2km then gave up when i didnt do anything wrong and just sped off. Im surprised i havent been pulled over yet i don't have a number plate ligth on the back, and a 3.5 exhaust which is pretty loud (kind of annoying actually ).
Ill keep an eye out for you