You are crossing an intersection and an emergency vehicle is approaching while using its siren and flashing lights. You should:

If you are in an intersection when you see an emergency vehicle approaching while using its flashing lights and/or siren, continue through the intersection and then drive to the right and stop. You must yield the right-of-way to any police vehicle, fire engine, ambulance, or other emergency vehicle using a siren or flashing lights.
DMV Writen Test