That's completely different. It's one thing for GM dealer to have parts shipment come in a Dodge truck similar to your example that supplier happens to be using. Quite another to offer a Dodge Neon as a service loaner. Yep, the use of mailbox is exclusive to the Postal Service, however what constitutes FCM category and are you saying its illegal for me to send you a correspondence via UPS provided that I don't use mailbox?If then, what is the lawful use of this
https://www.ups.com/content/us/en/r..._pos=1&srch_phr=envelope#UPS+Express+EnvelopeIt says "For urgent
correspondence and documents."A lot of ball game tickets get UPS'd signature required in those things, as opposed to US Mail Certified Mail. No doubt cheaper to send it by mail. When UPS sends "thank you for signing up with UPS MyChoice" using US Mail, that's like an indirect way of conveying "US Mail is cheaper for correspondence and we encourage you to change your correspondence shipping needs to US Mail, we're UPS and we do it"