From a truck drivers perspective:
I had a delivery at 6am in the morning at this store, and there was little “truck parking” available, but around back near the docks there was enough room for 2 or 3 trucks to fit and not be in the way. Plenty of space to do a slight blind-side back. The receiving manager answered the door at 6:02am (they don’t punch in until 6am) and explained that I needed to pull the empty trailer I would be taking with me out of the dock, and then put my loaded one in. It was straight forward and easy. Would have no problem delivering here again.