Mine was left out in front of my apartment too, lucky for me it was in the 80's and dry. Not too sure on who delivered it, but if I was you, I'd complain. I'd think leaving it where it could be distroyed would be a violation of the shipping companies policy.
My father in law is notorious about complaining. He had requested printer ink to be delivered where he had to sign for it when it came, yet the shipping company left it next to the door of the apartment without a knock. So he waited a couple weeks, called and asked where his delivery was, and when told that it had been delivered, told the rep that he never received it, and it was to be a sign on delivery, who signed for it? Needless to say, he got another set free. And again, they left it by the door. He didn't complain that time.
I don't recommend doing that. I don't know, I have a conscience about things like that, lol...can't do it. But I do tend to call the companies on the rare occation that a problem does happen. Can't fix the problem if they don't know there is one. (you don't want to know the problems my co-workers and myself have had with Wachovia...until I gave up on the branch handling it, and took it to the headquarters. They solved it in 15 minutes, unlike the 6 weeks the branch had).

Sorcha