Pacific Nissan Mission Bay Auto Sales Unlawful Credit Check, Uber Xchange Lease. San Diego California

In March 2016 I applied for the Uber Xchange Lease Program.  Xchange checked my credit and I was approved.  I was given a list of local dealerships in my area to choose from.  I chose Pacific Nissan.  I was told all I had to do is make an appointment with the Uber rep at the dealership, with $250 cash or cashiers check,  I went to the dealership and spoke with the "Uber" dealer.  while in the office filling out the paper work for what I thought was for the lease I was already approved for, another person came into the office, started asking who I worked for, how much money I make, etc...  I asked why they needed to know this information and if they were running my credit for some reason, I got no answer.

A few minutes later another person comes in the office and has paperwork for me to look over to sign.  It gave me 3 choices for the amount of money to put down on the car, I saw they did have the $250 listed and I told them, that I was told to bring $250 with me and I just picked the car, and should be on my way, he seemed confused.  I then handed to give them the $250.  

Next the first guy comes back in the room and asks me if I know what is going on.  I said yes, I am there to sign up for my Uber Xchange lease and get my car, he tells me that I have 2 choices, either pay the large amount for the lease or pay less amount to purchase the car.  I told them I was there for the Uber Xchange lease I had already been approved for, and again asked if my credit was being run by them.  I was asked if that was a problem, I said yes, I didn't give anyone permission to run my credit, no one asked or told me it was going to be done, and I had no intent to purchase a car that day. I was then told not to worry about it and that we would be done with the paper work soon.

After 6 hours being at the dealership, I finally get to go home with my car I leased.  The next day I started to receive multiple alerts that my credit score had changed, it was at that time that I noticed that Pacific Nissan did indeed run my credit.  and my credit score dropped by 16 points. 

I called and emailed Pacific Nissan about what they had done and got no response, When I did get a responce I was told there was nothing they could do, and to contact the Credit Agencies They contacted and the buero's and tell them what had happend.

I sent "official" Certified letters to all agencies and have started receiving letters back that I need to contact the dealership about this.  

All I want is for Pacific Nissan to clear this matter up.  I never requested to have my credit run by Pacific Nissan, if after the Lease I wanted to purchase a car I wouldn't be able to, due to my credit being run multiple times, and those checks stay on my record for 2 years.  this has just become one giant circle with no solution or admitiance of fault.  

Any help from anyone would be great.