Shipping prepared scrap is always going to be a priority over unloading your truck. They are paying that truck driver to sit there. Usually around 80 an hour. So think about it you are sitting there not costing them money but bringing them money and you are a peddler. The truck driver is getting paid by the hour and they are shipping out twenty tons at a profit of around a 1000. Do the math you are last in line. They may have also had a crane operator or two call off that day. Just a thought.