That's bull shit man and alot of us out here feel your pain... seems like some of these dealers do the bare minimum, but only if you allow it. They should test the damn thing before they even think about calling the customer to come pick it up.
After the third time of any problem, I'd go in there and toss the keys to the service manager and tell him to take your fourty thousand dollars out for a ride and figure out what the damn problem is!!
Man I get burnt up over some of these dealers