If you have to stop on the shoulder of a freeway because of an emergency, you should:

Stopping on the roadway shoulder is highly dangerous and permitted only in an emergency. If it is necessary to stop, raise the hood of your vehicle and activate your hazard lights to indicate difficulty. Don’t walk along the expressway in search of help.

• Raise the hood of your car to indicate trouble and wait in your car for help.
• Stand behind your car to warn traffic that you have stopped.
• Get out of your car and walk for help.