I was not responding to the article, but specifically to your “Cars (computers in general) are nowhere near smart enough to deal with such trick [the Coyote tun

I was not responding to the article, but specifically to your “Cars (computers in general) are nowhere near smart enough to deal with such trick [the Coyote tunnel gag]” - the radar will certainly detect a wall, while a human might still be fooled by the a drawing.