Professional sales dept let down by their service ...

Professional sales dept let down by their service cowboys. I knew as soon as I saw the mechanics zooming around the car lot with the bonnets fully open I wouldn't be back. Do they need to mow down a child before this stops being funny? On presentation of the bill, even with prompting nobody could be bothered explaining the condition of my car or the work done. I persisted and a promised call-back from the service manager about my questions never happened. Should I mention the oil drops over the brand new engine they couldn't be bothered wiping up?