So now UPS is supposed to do the job of the police?
When you do business that way you probably can be expected to figure out if the 'business partner' is legitimate!
This isn't the first time UPS has gotten caught ~ but more frequently it'll be just a customer doing something surreptitiously ~ which isn't the case here.
UPS ends up looking lie a consiglieri more than a common carrier in this case.
So bust 'em!