From what I remember they did a little more than that. I was a teenager at the time living in Livermore, had to sneak away from mom to go to the concert for awhile. There were a lot of HA. Many moons ago.
Yes they did.
It was a bad idea to hire them for security and pay them in beer. Duh lol.
Several times I saw them escort troublemakers through the crowd.
All things considered, they seemed to do a decent job.
I was to the right of the stage (looking from the audience) on a flatbed truck with a huge dayglow (blast from the past huh?) brightly painted metal sculpture.
We were there from the day before until the day after, sleeping in the sculpture.