fedex is the only company we use.
and it needs a signature because if it's just left on the front door, and someone steals it, coach doesn't want to have a customer issue or get sued...
you can always instruct the SA to leave a msg for the fedex guy, like "throw it over the fence" was one customer's request, or "no signature necessary" (i guess that customer was really confident no one would steal from her).
i always prefer to sign for my thjngs anyways, it just means that the chances of it being "lost in the maiL" are next to nil.