BMW of Alexandria

I purchased pre-owned mini cooper 2012 from BMW of Alexandria on July 30/2014. The sale man was great and very helpful on that day. Since I walked into business office. The financial officer was trying to sell the car warranty. As soon as I say "NO" to ignore the warranty. He thew the paper right in front at me and ask me to sign the paper. I might not buy a $70,000 vehicle but the used mini is still cost me money to buy it. I was decided to leave but since the sale man was really helpful I just let it go. Two days later after the big rainy day. The scratch was coming off from the car which was not shown on the day I purchased. Seems like the paint job was not completely done well. OR it's not dry enough for the rain day. Now the license plate became to be a big issue. I was asking to keep the same license plate. However BMW said they will taking care of. I don't have to worry about anything. On August 22, 2014 I had a call from BMW says the license plate was ready for pick up. I called the lady back but she wasn't there and she never got back to be. I thought that was just the mistake calling because I never requested for the new license plate. On November 26, 2014 I was trying to renew my current license plate. Guess what I found out. DMV system is showing that my current license plate has been transfer to the other license plate which I never ask for. That's right!!!!I've been driving with invalid tag for 4 months. I could a get caught from the police from driving invalid tag. On November 28, 2014 I contact BMW Alexandria right away. "Hugo" he was a sale man was helping us out since the day be began the purchase says I had an invalid tag before the day I purchased the car with them. Which is not truth. I had a copy of my old registration show that the tag will not expired until Jan 2015. Also the sticker on the license plate show it's expired on Jan 2015. Seems like he was trying to blame DMV and me for the mistake. BMW will not take care of anything. I asked the front desk lady for the store manager she said the manager is not in the office today. They left us like we are no body there. I felt very disappoint on the customer service. Never experience this bad customer service in my life. I was the worst decision I made in my life that I step to this dealership and bought the car with them. Very sad and disappointed. I hope my experience will benefit to someone.