Ok so you suspect a cd is going down, weird post guy, you had to sign, whatever.
If that packs is in your house and a cd is in progress, your about to have a party.
You stare out your window while you open your package to check out goodies and you see the parade roll up.
Before they breach the castle you dial the police and begin telling them about how you received drugs in the mail and the package even has your name on it.
Yeah, your house will get searched and you will be arrested but would this be able to save you from a conviction?
Start screaming "Rape!!". That'll stop 'em.