@dlowan,
I don't know if this helps, but if I call the delivery people the morning of the delivery and ask them how many deliveries are they mak that day, and where am I on the list?
A long time ago when I was insistant on finding out when-abouts they would come, the dumb chick answering the phone told me "you're #2". So I asked how many deliveries they were making that day.
She was snotty and asked me what difference that made, so I said "well, if I'm 2nd out of 20, it'll be a lot sooner than if I'm 2nd out of 2."