Already done. The contents and cost of the package are listed on the packing slip, which is all put into their digital record. Tariffs on imports, sales tax on individual packages paid by the shippers or the packages/imports are not released to delivery.
Yes, of course it is. In this package is $ 400 of clothing, not the $ 30,000 of parts I plan to sell on the black market. Wake up, my FRiend. A label? That is more naive than illegals voluntarily coming out of the "shadows" to pay tax.