Yep definately get the extra road side assistance from your local service, (NRMA) for us being NSW. You are covered Nation wide, I speak from personal experience that happened to me back in 07 with my previous vehicle and camper when we only had basic cover.
long Story but basically our vehicle became immobilized after incident while 4 wheel driving on the South Coast, after we recovered it back to a point where the tow truck could access it, it was towed back to town (Moryua) as it was weekend after hours by the time it arrived in town it was stored at the towies garage, The first tow was $250 ontop of NRMA allowance this, included the same towie delivering it to local mechanic on the Monday morning.
We then got a lift with a fellow travellers back to the van park where we were staying for the weekend (South Durras)
as well as getting a ride home with them while the camper stayed behind at the CP stored for 2 weeks free of charge before a friend generously offered to towing back has he was going that way to visit family, naturally I gave him fuel money which he refused to take, so I posted him a gift card.
The mechanic in Moryua got the car going again 2 wks later it was stuffed, it was driveable but not good enough to risk to trip home, it was another week before a passing car carrier could retreive the car at $300 to bring it back to a local worshop for repair, fortunately the return on the car carrier and the repair was covered by insurance.
Which brings me to another point, if tow with a 4x4 on do go off- roading ensure it is covered for OFF-ROAD some dont.