Confirmed appointment for service for 9:40am today...

Confirmed appointment for service for 9:40am today, just to find out that instead it was 10:00am! Not a big deal but, when I got there Andrew (service rep) after I told him the issues with the car (xj35) he s first response was;
It s going to be $180 or so just to diagnose the car without even checking that I have a extended warranty! After that everything was unwelcoming, like they didn t want to fix the problems. He continued to tell me that they can t give me a car because they don t have any loaners and that i have to wait 2hours for diagnosing the car and additional 4 hours to fix the car disregarding that im entitled to have a loaner for the time that they fix the car.
Total dissatisfaction with horrible costumer service. This is pushing loyal costumes away to never buy infinity or Nissan again!