An officer saw a male who had climbed on top of the roof of the bus shelter above the main entrance to the station. The man was armed with a 6' metal pole that he was waving around and banging on the roof. He also threw several bottles into the bus zone. The man refused to come down. Medical attention was staged and fire personnel placed a ladder against the bus shelter, while officers tried to engage the man in conversation. After almost two hours, a sergeant was able to convince the man to voluntarily climb down to the ground, and the man was detained for psychological evaluation. He was transported to County Hospital for treatment. There were no injuries and no impact on service, as the station was closed fur Sunday service.