Golden Gate Bridge Bday

Ok, this is the story. I told my boss that on the Golden anniversary of the GGB that the weight of the people on the bridge caused the span to flatten. He doesn't believe me. I've confirmed that it took place on May 24, 1987. The confirmation came from the Director of Public Relations of the GGB authority. My problem is that I cannot find a PICTURE of the event. Other web sites have mentioned that it happened. But I saw the "uncurve" on TV news and I want a picture to prove it. Anybody got a source?