I'm not familiar with Fed-Ex, but I know UPS at our house will bring the package to the door (too far too throw it, and sometimes too big), knock or ring the bell (which sends the dogs into a frenzy) and then go back to their truck.

Here at work, they have to come in for obvious reasons. The things here at work usually require a signature as well.

I've never seen them just throw packages. That's not cool. They usually replace broken items. A long time ago when I was selling PartyLite candles my friend had ordered a large glass candle holder. When it was delivered you could hear it was busted before even opening the package. The UPS driver took it back with him and I contacted PartyLite to let them know what happened. Turns out she ended up with TWO of them!! One the candle company replaced and one UPS replaced.
Oh the good old days!