Anyone in the know knows USPS first class mail is a much better way to send that kind of stuff. UPS and FedEx are private companies so they operate under a completely different set of laws.
Exactly. There's a reason DNMs almost universally mandate USPS over third party carriers. Police dogs and controlled deliveries with the others is nothing new; client was a moron.
... did you forget USPS is actually running the comms gig on you guys?
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