That'd be the toilet paper packing.
Just guessing yeah USPS is not the best at pick ups in some areas, So the business may use a "collection service that dumps shipments from a route at a postal facility.
Found what is the most likely answer here:
https://www.reddit.com/r/Ebay/comments/g3eemr/what_does_departed_shipping_partner_facility_usps/brasscup
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7 mo. ago
This usually means (on eBay) a shipping partner in China.
Chinese sellers know that many USA ebayers use the USA or North American sellers only.
Somehow, by going through one of several shipping partners that specialize in routing packages from Asia, they make their eBay listings eligible for USA shipping origination.
(Typically the listing indicates the seller is in California).
I just fell for this trick again, trying to buy a phone case from the one supposedly USA seller who had it.
We should make a master list somewhere if eBay sellers who do this (usually they are selling the kinds of items you can get on Ali Express ... Phone accessories, nail polish, anything lightweight with a private label brand you never heard of).
Lots of eBay buyers and competing sellers have reported this practice to ebay but eBay doesn't care.
(The seller generally cancels the sale and refunds immediately if you query how long an item is stuck in transit, removing the need for eBay to intervene and preventing the pattern from being obvious).
In almost every instance, the seller spoofing a USA origination also gets to charge a few bucks more per item than sellers whose listings say shipping from China
