According to this article from the Detroit News, Marine reservists may no longer park in the United Auto Workers’ lot if they "are driving foreign cars or displaying pro-President Bush bumper stickers." (In fairness to the UAW, however, the article also notes that the union is building a residential home for children of veterans who have lost their parents.)
This raises an interesting question: what constitutes a "foreign car"? I assume they are referring to vehicles that are not made by an American corporation. That does not really qualify as "foreign," does it? Honda is a foreign-owned corporation, and employs roughly 16,000 workers just in the state of Ohio. General Motors is Mexico’s single largest private employer. Doesn’t the "foreign" vs. "domestic" distinction seem somewhat arbitrary under these circumstances? In fact, given the facts noted above, it is likely that the policy actually penalizes some Marines for driving cars that were produced in other Midwestern states.
Update: The UAW has changed its policy and is once again allowing Marines to use its lot regardless of the car’s origin or bumper stickers.