Ahh...customer service at it's best...
Much easier to please the customer...but the tech is thinking solely about his bank account. Not a good way to do business. It should never have gotten to the point of having both GMPP and the tech on the phone line together.
The tech will always have plenty of oppurtunity to make up the warranty wages on some other repair. Heck, he
wasted more time by arguing what was covered and what wasn't. That alone cost him money.
Worked at a dealership for 4 years...been there done that.