In '77 we had about 10 locals in the neighborhood of a Subdivision with a common but keyed box and delivery was never an issue.
That said, a different person delivering unsatisfactorily is a matter to take up with the Postmaster and complaints filed if appropriate in writing with a response requested from supervision.
It amazes me some folks ***** about USPS, UPS, FedEx etc. on a site dedicated to the enjoyment and furthering of knowledge for the cars we love.