Final answer:
Stopping on the shoulder to take a break is not allowed on a road with an EMERGENCY STOP ONLY sign.
Step-by-step explanation:
The EMERGENCY STOP ONLY sign indicates that the shoulder of the road is reserved for emergencies and should not be used for regular purposes such as taking a break. Stopping on the shoulder to take a break when there is no emergency can be considered a violation of traffic laws. It is important to follow the signs and regulations to ensure safety on the road.