While Willie dozes off, Alf leaves the car, cuts down a tree with a chainsaw, and stuffs it in the back seat. Which gets the attention of a forest ranger real fast. Result: large fine, expensive tow and all the rest, but at least they don't have to spend Christmas in the forest. And they get to keep the tree.
Somewhere in there, there's a message about messing things up, and how all our efforts sometimes make things worse. But sometimes our desperate attempts turn out to be a cry for help in the right direction.
And we still get to keep the tree.