HORRIBLE-Worst auto purchasing experience!

HORRIBLE-Worst auto purchasing experience!
Started with 2nd key fob not provided at the time of purchase. Later I was unable to obtain my motor vehicle tag due to additional fees not calculated by the business manager when I purchased an extended warranty. I spoke with several very inept individuals who failed to provide customer service. What I received from the following staff at Nalley Lexus: Justin Balcher--sales associate--who became invisible and refused to return any telephone calls---Adam Rubin-sales manager-who completed sales invoice and stated he was very familiar with and sales in surrounding states-yet failed to calculate sales tax correctly. I attempted to contact Ross Stocklin, Olin Dunford, and James Boeing and received no assistance regarding my concerns. I would say the worst display of negative communication with this dealership staff occurred with Olin Dunford 10/20/17-when I presented at this dealership to address my concerns. I requested to speak with Mr. Boeing and advised Olin --to remove himself from my presence. My husband and I observed Olin -mimicking me disparagingly and negatively to Adam, Ross, and additional staff present. When he saw me observing him--he closed the office door.
I believe the actions I saw on display constitute what I felt to be negative, disparaging and discriminatory and serve no purpose. This dealership has poor customer service. I have requested, and I am still waiting for my survey to rate this entire sales process.