The postal system in Canada sounds like it's pretty horrible, no offense. It seems to me as though it's a combination of inefficiently constructed and incompetent. Over here the postmen would just drop the package next to your doorstep to pick up. Or at the very least, the would knock before presuming the homeowner isn't there to pick things up.
It's a waste energy to go the same location twice in row for no reason what-so-ever other than fumble about in front of someone's house and to waste storage on old, undelivered, packages.