Unfortunately, no. For two reasons.
First, all cultures have certain traits — more expressed in some members than others, but it it yet there. American culture provides its members with a lot of good personality traits, but a perceptible lean towards arrogance and ethnocentrism are, sadly, some of those traits. He came up with his lie because he has those traits, and it almost worked because we do too.
Another reason is the simple fact that this guy wasn’t acting like a celebrity. He was acting like one of our trademark bros. The interesting thing about this circumstance is that he is an Olympic athlete, but this shit is done by less important Americans every spring break.