If you need help while on the road, you should:

• Pull in front of the police cruiser and ask for help
  Explanation:

  "If you need help, pull in front of the police cruiser and ask for help. Never stop behind a police cruiser. Do not approach a police officer who is dealing with a stopped motorist. Stand next to your vehicle on the shoulder until the police officer is finished."
• Stop behind a police cruiser and approach the officer
• Approach the officer while they are dealing with a stopped motorist
• Wait in your car until the police officer comes to you