10 yrs old.. thats a long time.. im sure if you have been working at the one shop for 10yrs you would be considered a reliable competent worker
personally i think alot of cars under warranty are taken to smaller shops as they all seem to keep car warranty at their shops.. and strive to keep you as a repeat customer as they have reputations to uphold.. where as dealerships sell mass cars and are alot larger.. (obviously you need to go to the dealership of the car you want, nissan.. holden etc)
ask around at work hsops and just enquire to app and busy etc..