Recovering from epic fail (deleted .git/objects/pack)

I really wish I didn't have to ask this question, as we discussed in
#git early this morning, whiskey is the likely answer.

For unexplainable reasons one of our sysadmins got trigger-happy when he
tried to prune a temp_pack file generated and left in a
developer's .git/ directory after a git operation aborted (disk quota
exceeded)

As a result, the sysadmin killed the developers
entire .git/objects/pack/ directory. (insert copious amounts of whiskey
here)

He did not however delete all the other contents of .git/objects (00/,
01/, etc)

Is there a feasible way that I can properly recover
the .git/objects/pack directory such that the developer who had their
last two weeks of local work thrashed can get it back?


Anything that can help (other than pummeling the sysadmin) would be
appreciated

Cheers
-- 
-R. Tyler Ballance
Slide, Inc.