Sounds like the buyer should have ASKED for the sheriff.... Private police threatening fines and jail time? Let them say that with law enforcement around for any follow up lawsuit. A purchase was made and the wrong product arrived at his door.. the seller had legitimate reason to have the product, but broke a street date... The customer did not ask for unreleased product... Sounds like the dealer is at fault, but not…
This is the key question. Almost all the comments in this story are on 1) WotC are jerks for sending Pinks, 2a) the guy shouldn't have given them the product, 2b) if Pinks showed up at your door you'd do it too,
... but if it is indeed the case that dealers don't own pre-release WotC products before the release date, then it goes from open-and-shut "he was within his rights to keep the cards forever" to something more messy.