Chevrolet of Canton

Set up an appointment for my new Silverado, a week out for 7:30am on a Friday. There is a loud vibration under the truck bed near the exhaust and something is loose in the back seat. Took a video of the so rep could hear the exhaust sound, to help isolate the issue, service rep was in was in a bad mood. His response was nothing abnormal there, probably not worth tech looking at it. So, I took him out to the bay where the truck was sitting and started it up. His response was that was not normal. The issue is he was a complete jerk and attitude was off the chart. Felt like I was a burden and inconvenience to them. Asked to speak with the manager, was not much better, and started conversation by telling me he must support his service reps first. Found that interesting as I was not aware that the service reps paid the bills, I thought the customers did. Regardless, he drove the truck and was telling me nothing wrong with the truck. At this point I made the decision that no way I would want these folks ever touching my vehicle. After driving to a different service center, they found that the spare tire heat shield was rubbing against the exhaust. Brand new vehicle, and I will not be taking to this place for and service work in the future. Completely unprofessional, uncaring, and the worst customer experience I have ever had at a dealership.