I'd be more than a bit peeved if someone was blocking the foothpath for 15 minutes, and I had to wait in my wheelchair or even worse had to stand for 15 minutes!
I think it would be good to have a face to face with the idiot that thought he could block the pavement for 15 minutes and the young mothers and the disabled would not mind waiting in the cold or the heat.
Meanwhile the car drivers would be sitting in their air conditioned cars, or with the heater on, listening to their favourite music with the windows up, and not a care in the world.