Cable Dahmer of Kansas City

I purchased this truck at cable dahmer in 2007. It is a 3/4 ton diesel silverado. A very expensive truck. These did not come with a sunroof so I paid cable dahmer an extra $2800 to install the sunroof. Several years later, when the sunroof started leaking I took the truck to cable dahmer to fix it. I told them it was leaking badly so not to leave the truck outside if they were going to keep it overnight. They laughed and said it will be done today. They ended up having the truck for 3 days. The second night they had it there was a torrential downpour. The whole area got 3+ inches of rain. When I picked up my truck I ran some errands. About 4 hours later I was in a parking lot and realized as I was getting out the door there was a huge amount of water coming out of the door and the floor panel. I tool a video as evidence. This was a day and a half after the heavy rain. when I called cable dahmer they had me bring it in and said they couldn't see anything wrong so .... basically get lost. I am not sure how much rust damage will result of this drenching the truck took for a day and a half. I will never take my truck back to this dealership.