I do not believe so, though that would be a nice option.
well my package says "indirect signature" and i looked on the Fedex site and it said you could leave a signed dated note giving them instructions to leave it in a secure location or print off a door tag and do pretty much the same thing
Yep
I believe folks have linked to a form, but I've just left a printed note, "I authorize the package to be left at this door, tracking number xxxx, on date xx/xx/xxxx", sign it, tape it to the door.
[edit]
Here's one:
http://www.fedex.com/downloads/my/forms/signaturerelease.pdf