Dseabaugh,
Did I read you right, you both got terminal diagnosis? If I were faced with that, I'd be real tempted to get my last revenge with about 5 lbs of explosive wired to the seat or steering wheel with about a 5 second delay after the door was opened!
OK, I'm only (half) joking. Too much possibility of collateral damage. But still...
I have a real tough time forgiving malicious vandals and thieves, especially when they prey on someone like you folks.
I don't have any practical solutions, just a ton of sympathy. Well, maybe one: how about a set of truck air horns tucked up behind the front bumper or lower frame support under the radiator (like my Hadleys) and a decent size air tank back on the frame, all wired to a car alarm. You can use the horn when needed during normal driving, too. When they set off the alarm, the truck sounds like a semi blasting away.
-Jay