Ok, so, what does the LS warranty say about speedy repairs, right to get independent repairs, ect? I mean if it sits for another week or two, and the dealer hasn't atleast ordered the part, is there a way to look at your other options. If the dealer Has ordered the part, and is waiting, it could be 6 weeks before it ships on the container ship, goes through customs, gets on ground transport, and makes it's way to the dealer for install.
How bad is/was the leak? Is it catastrophic? Is it a dribble, or a small stain after a couple days?