Battle-scarred from skirmishes at the State Fair and the AFL-CIO Labor Day Rally, the "Truth Truck" of a gay-marriage opposition group was resting Tuesday in the St. Paul police impound lot, one place where it might not cause a public commotion. In less than two weeks of operation, the billboard truck -- with its 8-foot tall images of two men kissing and the message "Want Gay Marriage? Vote Democrat this November" -- has been in the middle of two arrests and at least one general fracas. The latest incident occurred Monday at Harriet Island Park in St. Paul, where some...