Chef Larousse picks up a ladle full of chicken stock from a large pan. As he raises it, however, it is clearly both empty and bone dry.
A police officer approaches the outbuilding with smoke billowing from it. When told not to enter, she turns and walks back toward the house - all traces of smoke are gone.
The knife Ashley uses to cut herself free is a very distinctive Japanese Global knife. It is made from a single piece of steel, with a regular pattern of black dots on the round handle. When Doug is thrashing about, however, the knife seems to have a much thicker, square-profile handle, possibly a plastic block.. It is certainly not the same item.
When the car won't start, a recorded message says the battery has been disabled. The engine was turning over, though. If the battery was disabled, there would just be a click when they turned the key.