I own a 2005 mazda 6. It needed some minor repairs...

I own a 2005 mazda 6. It needed some minor repairs done to it and I had scheduled an appointment A WEEK in advance to come to Fairfax, Mazda to get the repairs done. I drove my car to the "steal-ership" at approximately 10:00 a.m Saturday morning. I went and spoke to an arrogant SOB inside the repair department. He has a small mustache and wavy light hair. Just look for the person who must spend an hour on their hair every day and you will know who I am speaking about. Nonetheless, he asked me to leave the car with them for a couple hours because he said they were running a little behind. I did this and gave them a call 2 hours later. They picked up and said that the mechanics had ALL GONE OFF TO LUNCH?... and no one was available at this time. They asked for a couple more hours. I gave them a couple more hours and called once again and they still said that there were other cars before me in line. All this time my keys had been left in the ignition and the car was parked in the exact spot I had left it in the morning. THEY DIDN'T even move my car and left it unlocked! I went back 6 hours after I had dropped it off and saw this. On top of all this, the SOB was even hostile and angry when I confronted him on the issue. This is by far one of the worst excuses for a dealership in the area. Avoid this place at all cost or it is your own loss!