A driver smells a strong chemical odor and discovers a leak from one of the drums in the cargo area while parked at a roadside rest stop. What should the driver do FIRST?

1. Attempt to repair the leak with materials on hand
2. Secure the area, keep people away, contact emergency services and dispatch, and refer to the Emergency Response Guide (ERG) for guidance
3. Drive to the nearest exit ramp to find a hardware store
4. Wash the spill with water immediately