The last town I lived in didn’t do door-to-door mail for ANYONE. If you want your mail, come to the post office.
Private carriers like Fedex/Purolator are a bit more accommodating, but tracking down your regular letter mail was your problem.
The post office worker’s would get super pissed off if you received mail with your actual address on it instead of the PO box too. Taking 10sec to type it into the computer to match street address with PO box was the end of the world apparently…