I have gotten them both ways. Delivered at 8 Am because they lost my phone number(my normal delivery is at 4:00 Pm but they didn't want the bees in the post office) A call at 4:30 pm to please come and get your bees or a call at 6:00 Am to come get your bees. I also run my own business but they prefer me to pick them up at the post office when they call. I have had to close my business for an hour to pick up the bees. Post office employees seem to dislike bees in cages.
just South of Lansing Michigan