The federal government shutdown may have caused the National Parks (and other public services) to close while politicians bicker over the national budget, but nothing will stop American families from enjoying their vacations. This picture below—of an American patriot summoning his inner Clark Griswold, defiantly tossing aside an orange road cone blocking the entrance of South Dakota’s Bad Lands National Park—went viral over the weekend. (We assume he’s also yelling “Freedom!”) Twitchy has assembled this gallery of Samuel Adams-like American vacationers refusing to let things like “road barriers” and a “lack of trained park rangers versed in the safety of navigating dangerous wilderness areas” prevent them from enjoying the majesty of the national park …