Investigators Saturday are still trying to determine why a man in his 60s drove his car onto the steps of City Hall in downtown Los Angeles and refused to get out for nearly two hours. The car was driven onto the steps from Spring Street around 4 p.m. Friday. Reports indicated that there might have been suspicious items inside the vehicle, and City Hall was evacuated as a precautionary measure, along with the area near Grand Park. “I’ve been briefed on the ongoing incident outside of City Hall, which is currently being evacuated out of an abundance of caution. Traffic in the area was impacted during evening rush hour, with Spring Street and some freeway off-ramps were closed.