In the widow how do you get the oil to loosen the key?

You have to line it just right. Try aiming it in a slightly different place. It took me four tries to get it.

If you look carefully part of the lock on the hasp (the curved piece at the top) is shiny. Slowly apply the oil to this part. It should turn green as you do it. When you have finished the bottle will tip up on its own and you will be able to remove the key. It took me a few goes to find it.

Aim the tip of the oil at the bottom right portion of the shaft / hasp of the LOCK (the part that retracts / moves for you to put through something to secure it). The oil bottle will then automatically move over to the key hole and you can get the key out.