Now I don't want to be pedantic (OK OK I am!) but it is unlikely that a cart would be left like that. 1) once you had un-hitched the horse how did it get out? 2) what is the point of putting the shafts undercover and leaving the body out in the rain, not that it rains in LM.
A cart like that if outside would be left tipped up on the two bits of wood sticking out the back, that's what they are there for. It then means when you want to hitch up you back your horse in between the the upright shafts and then pull them down and fit the chains and rest of the harness. Sorry I'll trot off now! 😀 Nice scene though.