Banks Chevrolet Cadillac Buick GMC - Service Center

Left my Cadillac off at Banks Cadillac in Concord NH for work over about a 4 day period. When I picked it up it had 114 more miles on it! My wife and I checked mileage as we always do when we leave a vehicl work over about a 4 day period. When I picked it up it had 114 more miles on it! My wife and I checked mileage as we always do when we leave a vehicle over for more than a few days. We also noticed the missing gas. Service advisor also confirmed the milage was 114 more than when it arrived. When I could not reach the owner, to report this, I contacted the Service Mgr by name of Gauthier. He basically said that his service advisor, my wife, and I all saw the wrong milage. I only brought it to his attention so he could prevent it from happening in future, accept responsibility and apologize. I asked for nothing in return. Instead he handled matter in a manner that placed a devisive wedge between his staff and this customer. He basically called me and my wife liars! I also CLEARLY requested to have my vehicle stored in doors. Gauthier said they did not recall my request. This was the worst case of denial, cover up, and "customer service" I have ever received! This might be the level of service expected from a third world communist dealership but not from a Cadillac Dealership. I was waiting for the GM rating card but never got one. Wonder if Banks Cadillac "forgot" to send my repair info to GM??!! More