There is no way to determine what object in the video is being tagged as a person. While the car may have initiated the motion event and is outlined with the green box, it is highly unlikely it is the object in the frame being tagged as a person. Wyze does not mark or highlight the object identified and tagged as an AI object.
The Green Motion Tracking box only shows something that is perceived by the cam as moving. It does not identify what is being AI tagged and it regularly does not show what motion initiated the motion event recording. It is simply marking the largest fastest moving object at that moment.
If you are getting Person Events when there is no person in the frame, it is most likely due to a non-moving object within the frame and included DZ that is being mistaken as a person.
Refer to this post on how to reduce those false positive AI tags and notifications.