1. Determine if the owner needs help. Try to wake the host, but don't wake the host by force. If the owner doesn't respond, consider calling the emergency number or asking others for help.
2. If the owner seems to need medical help, he should immediately call the local emergency number, such as 1 10 or 120. Explain the situation and provide the location and license plate number of the vehicle.
If the host starts to vomit or vomit, he should move it to a safe place and clean up any vomit.
If the owner seems to be alone in the car, consider leaving contact information on the window so that the owner can contact you when he wakes up.
5. Wait for the arrival of local law enforcement agencies and provide them with all available information.
In a word, when dealing with this situation, the most important thing is to keep calm and concentrate. Don't try to take any risky action against drunk car owners unless you have received professional first aid training and know how to deal with this situation.