Originally Posted by xepherys

Also, in the first case, you were likely in the wrong (from the sound of it). It's generally considered correct to yield the right of way to a person backing out of a spot, regardless of how full the lot it, because it is MUCH easier for someone in the mainway to see someone backing out than the other way around. Always yield right of way to the person with the most (potnetially) obstructed view.