NorthStar Mitsubishi

I found a used car on truecar that I wanted. I inquired about the car through truecar's website. I recieved a call the following morning from a call center to schedule a appointment. I called northstar to double check availability and price because I informed them I was 2 hours away. I arrive at the dealership, test drive the car then sat down to discuss numbers. As it unfortunately happens too often this is were it all went south. No one appreciates being lied too nor treated like this is their first time buying a car. First thing they say is that true cars price was with $2500 down, so the price just went up $2500, when I explained how silly that sounded and told him I had the true car certificate in my email he said he will check with his manager. Salesman comes back and said they will honor the online price but I have to buy a aftermarket powertrain warranty for $2500. I explained I had no interest in a warranty, he goes back to his manager and returned to say it was already in place so I had no choice. I explained to him I did not appreciate being lied too and that I was pretty sure a aftermarket warranty with multiple packages would have to be purchased by the customer not set up pre purchase by the dealer. Either case I wasted 4 hours of driving because they could not be honest.and transparent.