In the quals on the previous day, he made contact with the safety barrier, and that was the end of it, DNQ. But, on this day, he was in the waiting line for 4 hours, maybe because he was bullheaded, maybe because he'd been mislead to believe he'd be allowed to make a go for it, but anyway, the staff was clearly blocking the way, and telling him to shut it down.
If they really wanted to shut him off they could simply just shot a fire extinguisher down in his intake.
He didn't give a shit, had a good time, and proved that Aussies are still rebels. They banned him the following year in 2013, and he came back in 2014 with a car known as KILLRB