It´s funny how movies get done...sometimes it sounds like a trial for anybody´s patience. In this case, I wonder if the crew couldn´t pay more attention removing the cones or maybe it was intended that they remained because they were just rehearsing before rolling the cameras?
"Hell begins on the day when God grants us a clear vision of all that we might have achieved, of all the gifts which we have wasted, of all that we might have done which we did not do" ~~Gian Carlo Menotti~~