I had two orders seized recently, customs sent certified and I didn't pick it up, then the re-ship was seized, got another certified letter. Stopped using that source, though everybody else seems to get theirs from him. Mine where also all seized at Dallas/Ft. Worth, seems anything that goes thru Dallas or San Francisco gets seized.
I may be wrong, but I don't think they usually write down your DL# or anything other than your name when just a registered shipment, when my mailman delivers stuff I have to sign for, he never asks for ID. Maybe it is differant when you have to go to the PO to pick it up?? Controlled delivery I know they do, but the standard Customs certified letters are just sent registered.
The mailman delivered a registered package from an IOP the other day that rattled, he had to have known it was medication. I'm paranoid after recent seizures and was looking behind him to see if the DEA or something was geting ready to bust me. The package contained Zocor for my elderly mother.
I wouldn't sweat it though, just don't order from that IOP anymore. Don't think you have anything to worry about. A year ago I had a fairly large order of anabolic steriods seized, I figure if they where gonna get me or flag me, it would have been then. I think its terrible that the goverment won't let people get affordable meds, which are sold OTC in almost every other country in the world. Just another way for the rich to exploit the poor in my opinion. The powerfull politicaly connected pharmaceutical corporations don't want the sick and poor to get medication at an affordable cost, when it costs pennies to manufacture these meds.Most people don't have a clue as to how much the politicians receive from the Pharmaceutical sector.
Sorry for rambling on, just ticks me off when I hear about people in pain or in need of medication denied of recieving it. Best of luck