Earlier quoted context omitted.
I’m not sure where you get that from. These are specifically designed to confuse face detection software. Edit: Maybe I see the cause of confusion. The videos show “person” detection, but the way these systems distinguish people from other objects is by faces. As far as I know cars don’t do that, they just detect objects and don’t care about faces, so it shouldn’t be an issue.
At the bottom of the « collections » page in the technology paragraph, they mention confusing the Yolo object detector into thinking you’re a giraffe with medium confidence instead of a person
Specifically on cars, I don't think any of the currently deployed systems do face detection. Apart from anything else it takes too long, almost half a second on the fastest systems. They sense people as generalised blobs. It would be quite dangerous, to a system like that many advertising billboards would appear to be people sticking their faces right up against the camera.