Oil change and tire rotation for 2 cars

We gave Kuhn Honda the opportunity for our business upon moving from Clearwater to Tampa. Our first two visits for service repair were great, however the third visit was dreadful. On the third visit, we took two cars for oil changes. One car was quoted as needing 1,200.00 dollars in repairs, while the other car wasn't even inspected as stated and was returned damaged. We discovered the damage two miles down the road after we left the lot. Kuhn Honda's response was that they would throw us off the property for trespassing when we requested to come to the dealership to review the video and that the car left the property "intact". We took the other car to another repair shop and found that 400.00 dollars in repairs weren't needed, and the other 800.00 dollars in repairs would cost 400.00 dollars at their shop. Damage to the first car was 300.00 dollars, and we consider it a reasonable price to pay to know how both us and our cars are treated at Kuhn Honda.