Is it legal to use the emergency crossovers to "turn around" in the event you missed an exit or are in a traffic jam?

• No, because these are exclusively for emergency vehicles
  Explanation:

  "Emergency crossovers are reserved exclusively for emergency vehicles and highway maintenance crews, ensuring safety and efficient traffic flow. It is extremely dangerous and illegal to use them to “turn around” in the event you miss an exit or are in a traffic jam."
• Yes, as long as you signal and proceed with caution
• Yes, if you are in a hurry to reach your destination
• No, but it is permissible in certain emergency situations