Gary is both the first contestant to find a Hidden Immunity Idol and to play one at a Tribal Council.
This is the THIRD time in "Survivor" history that more than one player in a post-merge Tribal Council has had immunity from the vote. Jamie won the immunity challenge, while Gary presented the hidden idol right before the vote. The first two times were: (1) Pearl Islands' first post-merge Council--Burton and Lill were exempt from the vote due to being voted back in as Outcasts and Rupert had individual immunity (given to him by Burton, who actually won the challenge), and (2) All-Stars first post-merge Council--Boston Rob and Kathy each won individual immunities.
Two people had immunity. Jamie won the immunity challenge, and then Gary found the hidden idol.
Bobby Jon was voted off. He lasted one position longer than Palau, and makes the jury.