Okay, assume that OP had a legal right to throw the package away as unsolicited.
It would nonetheless have been the gracious thing to do had OP contacted the company & said, "Oops, you sent me a package you weren't supposed to. Would you like me to send it back? Would you mind covering the cost of return shipping?"
I think that what many of us here object to is the fact that by asserting what you perceive to be your legal rights, you are causing a great deal of trouble for a great number of people. True, it may take you only a few minutes to file a complaint with any given agency. But I've no doubt that whoever receives that complaint will have to spend quite a bit more than a few minutes dealing with it. And those are minutes that won't be spent dealing with complaints that might be quite a bit more significant, thus impacting who knows how many other people whom you're not even aware of.
OP, you may indeed have had the right to do what you did. That doesn't mean it was the right thing to do.
It would nonetheless have been the gracious thing to do had OP contacted the company & said, "Oops, you sent me a package you weren't supposed to. Would you like me to send it back? Would you mind covering the cost of return shipping?"
I think that what many of us here object to is the fact that by asserting what you perceive to be your legal rights, you are causing a great deal of trouble for a great number of people. True, it may take you only a few minutes to file a complaint with any given agency. But I've no doubt that whoever receives that complaint will have to spend quite a bit more than a few minutes dealing with it. And those are minutes that won't be spent dealing with complaints that might be quite a bit more significant, thus impacting who knows how many other people whom you're not even aware of.
OP, you may indeed have had the right to do what you did. That doesn't mean it was the right thing to do.