When Tesla Motors launched its all-electric Roadster sports car, celebrities lined up to order one — including Governor Arnold Schwarzenegger. Now we hear he's been trying to return it for months. Like Detroit, cash-strapped Tesla is currently a supplicant to the government, counting on money earmarked for alternative energy to carry it through its trying times. In other words, a good time to have a political celebrity in their corner, right? Alas, no. Schwarzenegger frequently cited Tesla as an example of California's nascent green industries in speeches in previous years, and appeared with Tesla CEO Elon Musk at various events....