Run away. Run, run, away. Spoke with a sales repre...

Run away. Run, run, away. Spoke with a sales representative for 4 hours over text messages about trying to buy a new 2019 Ford Fusion. We chatted about the current incentives and I told him the price I was finding at other dealers and he said they would gladly accept that price. Needless to say, we went to the dealership to purchase this automobile (my wife and two toddlers with me) and after over 90 minutes of waiting and paperwork decided to tell me that the car was $4,000 more than we had agreed upon. I showed the text messages that were extremely clear and even the manager there said there was nothing they could do.
I emailed and called the next morning and did receive a call back from the service manager while I was busy but i have texted and called him back with no response.
I am extremely frustrated and don't usually take to writing negative reviews but I was deceived and manipulated to try to make a sale. The shadiest part was when they were showing us our monthly payments. they were almost $100 more than we were budgeting and then we asked for an itemized breakdown of the charges and they would not even provide us with how much they were charging until we were threatening to leave. The kept trying to say "oh here we will take another $500 off" or "what can we do to earn your business". For starters Green Ford you can honor the prices that your salesman negotiated and realize that there is hard proof that he said it not once, not twice, but three times. If you can't stand behind your word what kind of company are you? As I was leaving the manager tried to tell me that he could show me other Ford Fusion SE but he just couldn't sell this one for that price because it was $2,000 more. I will only purchase the car I spoke to them about at the price he agreed upon. Well, is $2,000 worth all of this, Green? Why not just stick by the word of your employees and not waste your customers time.
Maybe this post will cause someone to finally contact me. I thought sending the email to the general manager with a copy of the text message exchange would warrant further investigation and concern but clearly not.
Good Luck, Green Ford...you lost all of my respect and business.