The world is full of people who have an overblown sense of self importance. Usually such people think that everyone else is beneath them. So, it seems odd that a guy who thinks he can threaten Apple makes those threats to someone in tech support. If thisn guy is as big as he thinks he is why isn't he calling 'Bill Gates' himself? And if he doesn't have Billy's ear why does he think that the folks in tech support do? Apparently nobody told him that an informed threat is more menacing than one full of errors. Hyperbole also makes a threat less credible: If you can afford $30k to run a full page ad in the New York Times complaining that Apple won't extend your warranty to eighteen months than you can afford to pay for the repairs and save yourself the embarassment of having your recording passed around the call center.
The moral of the story is that if you want your warranty extended be nice, play the broke student card, beg... don't threaten tech support that you will use your pull to keep Bill Gates from building a new Apple campus in Texas and make it sound like you can afford to piss away $30k because you are stupid and refuse to come to terms with it.