USPS is the only storefront I can think of that allows you to walk in, grab an unlimited amount of boxes/supplies, and walk out with no questions asked.
They will even deliver boxes to your front door, for free, by simply submitting a form online.
It's so easy, I'm not at all surprised that it's occasionally abused.
Then have to waste time to politely educate the sellers…
They wrap up the free priority mail flat rate boxes to obscure markings to send them with a cheaper service. So they know should they’re naughty but might not realize it’s reached the level of a crime, perhaps. Definitely didn’t realize they’d have customers who don’t like stealing from themselves (taxpayers)
It’s a federal crime the the post office periodically investigates. You get offered to pay USPS’s estimate of the amount of postage you stole, or else face a criminal trial.
FedEx and UPS will report priority
Mail boxes to USPS as well.
They will even deliver boxes to your front door, for free, by simply submitting a form online.
It's so easy, I'm not at all surprised that it's occasionally abused.