Paid for a 2014 new E350 Mercedes Benz on December...

Paid for a 2014 new E350 Mercedes Benz on December 30, 2013. Found out they never processed my title. It is now March 3, 2014. I now have to wait another 4 to 6 weeks if they actually have sent the paperwork in for my title. Still have not received proof that they did actually finally sent the paperwork to the state so we can get title. Cannot get an owner or a general manager to call me back. They are either on vacation, in a meeting, or will be in later. Have left multiple emails and messages. Great sales people but one of the worst run dealerships I have ever bought a car from.. Parts manager was to get back to me about an accessory I wanted I waited 3 weeks for him to get back to me, then I bought $500 worth of parts at another dealership. Finance paper person was in too much of a hurry. Pointed and said sign did not explain anything. Gave us the wrong extended warranty, and several of the papers that were filled out had the wrong model car. No one seems to care at this dealership except the salespeople The parts manager, Finance guy who process the papers, owners and general manager just are pathetic. In 50 years of buying cars I have never run into a worse run dealership. There is no excuse for not filing the papers for a title. Disappointed on what I thought was a first class dealership. Boy was I wrong.