Obviously. But some less popular laptop vendors have this 'next business day' warranty where they send a technician to fix your laptop in your office or at home. Much better idea than a baking owen imho, however there is something in a scent of freshly baked mainboard ;)
Fun fact: Apple also provides 'next business day' warranty with their consumer AppleCare warranty!
But it sounds like his warranty has expired, hence the oven.