AutoNation Chevrolet North

I made an appointment online two weeks in advance as that was the first appointment available. Showed up Monday morning at 7:30am and leaving home at 6am as I live 75 miles from the closest Chevy dealer. I was the first customer there. I was informed that I would need to leave the vehicle for 4 days because they could not diagnose the issue till Thursday. I mentioned that we were very close to the end of the warranty and they repeated that they could look at it in 4 days and get a rental car, for which GM would pay up to $42/day, which is about 1/2 the cost of a rental car. It would have taken 5 minutes to put the truck in 4WD drive it 50 feet and be like, oh yeah, that does not sound right, we acknowledge that there is a severe issue with it and at 59,700 miles and we will repair it on Thursday and you can go home and come back. What was the point of making an appointment if you can not even look at the truck for 4 more days? How do you think you did? How would you feel if this is how your appointment experience went?