His friends should have taken away his Mustang keys, and then held his head underwater until the feeling passed.
He would have realized what a dumbass mistake it was. Well, he still will, every time he has to wait at the dealership for them to fix some broken Audi part, update the software that makes his radio system work, and when it costs him 100 dollars for an oil change.
The Audi dealership put this on their facebook page, and immediately were drowned in hate and discontent... because he did it for her! Yep, she has him by the tackleberrys. Poor stupid bastard.
http://www.thedrive.com/news/20722/internet-revolts-after-couple-trades-in-husbands-dream-1966-ford-mustang-for-a-new-audi-s5