The correct answer to this open question is the following.
Although you forgot to attach the picture of the vehicles, we can say the following.
The two options you have in order to abide by the Move Over law is that as soon as you see the first response vehicle coming your way, you have to move. If you can't move over for whatever reason, or in the case you are driving on a two-lane road, you have to reduce your speed. The law indicates that your speed reduction must be 20 mph less than the official speed limit.
This way, first response vehicles such as ambulances, police cars, sanitation vehicles or wreckers, can pass through and get to the site as soon as possible to offer help.
