Shia LaBeouf displayed raging patriotism over the weekend at Mount Rushmore. Shia’s fellow tourists tell us, they thought they he was just a random crazy until they got close … then realized the guy without the shirt was the famous actor, screaming “AMERICA!!!!!!” An old lady eventually asked LaBeouf to tone it down … and things got weirder. We’re told LaBeouf claimed he was a Marine and then asked her on a date. Shia’s in the area filming “American Honey,” where he suffered a gnarly head wound last week during an accident on the set.