So I made my first two purchases no problem. Then on my 3rd purchase, (I had tracking) the package was marked as delivered in my city. However I wasn't there the day of the delivery and my roommates also did not see a package. I'm pretty sure the package would have fit in my mailbox but I suppose there's a chance it could be a leave at door package.
If it's the latter, I have to assume it was either stolen or LE has it (but it wouldn't have been marked as delivered right?)
I have since received 3 packages no problem. (LE isn't checking my packages, sending them on to me and building a case right?)
So assuming no LE stuff (seems unlikely) it was either stolen, or perhaps me/the vendor messed up my address and it went elsewhere in my city.
In my experience, sometimes the tracking people do an incredibly shitty job at updating the tracking status. I remembered I ordered some hobby related things from China, and after 2 weeks it was still marked in China, the next day it said out for delivery from my local PO, and it got there that day.
What kind of shipping was it on? First class? Priority? Express?
Personally, I would keep a clean house and self, but I wouldn't be worried. The "they only go for big fish" idea is horsecrap, but they wouldn't build a case against you if it wasn't a large amount. They aren't going to switch an entire department onto a letter to someone in the town with a gram of MDMA in it.
If it was express shipping I would be a little on my toes, but anything else and I think you're fine. If you've gotten three packages since you are okay.