Feature request: Lock and unlock folders.

Hazel looks as though it's could be very useful for a PDF management project I'm working on. I'm currently testing it using the "Sort into subfolders" action to move PDF files into a subfolder hierarchy based on the file's creation date, like so:
Target Folder --> 2009 --> July --> 21
The PDF files are created on another Mac, then copied into the "Target Folder" over the network. So far, so good. However, I need the destination folder to be "locked" following the move, so that the user does not subsequently delete/move/alter the PDFs. Of course, that would mean that Hazel would have to unlock the destination folder if it already exists, move the file, then lock the folder back again. If the destination folder does not exist and Hazel creates it on the fly, then the folder simply needs to be locked following the move.
For the moment, I've rolled my own solution via AppleScript. However that relegates Hazel to being little more than a trigger mechanism, with my script being responsible for all the heavy lifting, in which case there are lots of other solutions out there. I would like to avoid relying on AppleScript, if possible. Hazel does everything I want it todo except for locking the destination folder.
Thanks!
Target Folder --> 2009 --> July --> 21
The PDF files are created on another Mac, then copied into the "Target Folder" over the network. So far, so good. However, I need the destination folder to be "locked" following the move, so that the user does not subsequently delete/move/alter the PDFs. Of course, that would mean that Hazel would have to unlock the destination folder if it already exists, move the file, then lock the folder back again. If the destination folder does not exist and Hazel creates it on the fly, then the folder simply needs to be locked following the move.
For the moment, I've rolled my own solution via AppleScript. However that relegates Hazel to being little more than a trigger mechanism, with my script being responsible for all the heavy lifting, in which case there are lots of other solutions out there. I would like to avoid relying on AppleScript, if possible. Hazel does everything I want it todo except for locking the destination folder.
Thanks!