I received a very rude reception by the service de...

I received a very rude reception by the service department this afternoon. I transport the brand-new trucks for Freightliner, I stopped in and went in the service department and let them know that I would be around back by the hoist and would get as much work done as possible before they closed, and I would finish up in the morning. I was told abruptly that I WAS finished and go to a motel. Even though the facility is open until 6 p.m., transporter's must leave the property at 4 p.m. I informed this rude individual that I called a few hours ago and I was told that I could work until 5 p.m. and if I needed a little more time we could work things out. His response was, I don't know who you talk to but that is not how we operate here.