Well, I went ahead and left them open till around 2am, when I had a bad urge to go to the bathroom. Knew there was no way in hell I could hold it in until 6am, when my relief got there. So, I cut holes in their "precious little decorations" around the door locks, closed the doors, and went and did my business. Only other choice would have been to have went to the bathroom, and leave the place wide open for someone to come in and take what they wanted!
If they want doors left WIDE open at night, they either need TWO employees there at night, or put me on days until after Halloween....it's just rediculous!