Replying to What to do with a spare engine?

So some idiot fucked up big time and TNT delivered an engine to my home. So now I have en engine sitting out the front of my house. I've called TNT saying that they had the wrong address and when the bloke came to pick it up he saw that it was too big and left.

Should I wait til the bloke who bought it realises that his engine never got delivered?

Can I get in trouble if I sell it?

I called the number on the manifest and the dude doesn't even speak english.