The San Francisco Fire Department called a fourth alarm shortly before 7:00 tonight as flames continued to burn out of control at the Park Hotel, a three story single room occupancy residential hotel on Folsom Street between 6th and 7th Streets. Neighbors have been angrily shouting at firefighters, urging them to fight the flames more aggressively. Strong winds and high temperatures have forced fire fighters away from the building, which appears to be a total loss.