the parking space than the person standing has to "reserve" it. If it were first come first serve which it is NOT (merely luck of the draw in Qatar where constructing parking space is an afterthought), he was there first. Anyway, don't sweat the small stuff...especially parking and traffic in Qatar if so your stay of a few years will take off years of your life. Just resign yourself to the fact that there are no traffic rules in Qatar that apply across the board and stay safe.