I think any large company works and coordinates with another large company if it's advantageous to them. Amazon works closely with USPS to drop items as close

I think any large company works and coordinates with another large company if it's advantageous to them. Amazon works closely with USPS to drop items as close and convenient for USPS. Netflix famously worked with USPS on their DVD envelope design and I believe they even upgraded many USPS sorting machines because it was in their business interest. I would believe Apple does the same (there's a sibling thread where UPS said they'd swing back by their house in 15m after missing a delivery of an Apple product--may be a coincidence, though).