Glow plug is shot, dpf is full, causing too much restriction on the engine. You could buy a new to you car for how much it’s gonna cost to fix. Good luck.
Just pull the ignition fuze or spark plug. Unless they bring a trailer , they can’t steal it if it doesn’t start.
Do you have a socket wrench? Just drain it. Take out the drain plug from the oil pan, let the oil drain into a milk jug or paint can or bucket if you have a jack. If you use a clean container, you can put SOME of the oil back in if you drain too much. Why pay for a tow when you can fix it for free.
You have a sliding back window right? Used to have to Jimmy mine open with a putty knife when I locked my keys in my old dakota. You’ll look like a car thief wiggling into that back window though.
Oil sits on the shelf at stores for years, the time intervals are a scam. I’ve always changed my oil off of mileage, all my cars engines have lasted over 200k.