The Bluff that Failed - AQ♥

Playing in a freeroll NL Hold 'em tournament, the King came in 965 out of 9,000.  Close but still far from the top 72 that would get free tickets.   He might have made a big mistake going all in with AQ on the flop as a bluff because he was running low on chips - about 6,000 and the blinds were 150-300 and they were antes.  Another player bet 6,000 with pocket fives and there was a five on the flop.  Its free anyway.