No worries, shredd the letter and forget about it. I had a 'friend' that ordered overseas quite often to his real home address (since 1999). Over the years he had collected almost 80 (yes, eighty) customs letters. I contaced, er, He contacted a lawyer and asked if customs has a 'list' or a red flag address list. I always assumed they did, but I'm really small time, er, he's real small time personal use only type of guy who takes all the other safety precautions, like none in the house etc.... Anyhoo, the atourneys found that there are NO LISTS of addresses at the customs division. Boy, that was a reliefe. But, they said somethimes if the oreder is larger, say 100 amps and 1K of dianabol, they may turn it over to the local police and they do a small investigation. Usually no more than asking thier snitches if they have heard your name or were known to deal etc. Then, with evidence in hand they come knocking on your door and ask, not did you order this, but WHY did you order this. Implying guilt. mentally prepare yourself and ask what it is then deny, deny, deny. My friend had such a visit about two years ago, and is still getting a 90+ success rate at the same address. Relax. I do believe in using a third party address, and if convenient, a third party that has your meds and a place in there to shoot.
PS- I got the legal from pre paid legal, maybe not the best heads in legal issues but she sounded very confident and did take three days of reasearch to find this info out.