I was there for a routine maintenance. Did not mak...

I was there for a routine maintenance. Did not make appointment. Was told it would take around 2.5 hrs. I agreed and waited. Obviously, they finished the work earlier since I saw the car was parked outside. However, they kept me waiting for almost an hour while telling me my car was being washed. Finally, they delivered the car to me after almost 3 hr's waiting with the car having no sign of having been washed. I don't care about car washing but I could not understand why they kept me waiting for more than an hour while the work has already been done.