USE AT YOUR OWN RISK I AM NOT RESPONSIBLE FOR ANY DAMAGE CAUSED
I had a friend contact me and ask if I could help with his problem: His dog would sit in the front seat, triggering the sensor and making an annoying sound whenever they rode together. So, I made him this! It turned out extremely well and doesn't take too much time to print.
Let me know if it doesn't work in your car, and I can see if I can redesign it for you!
Enjoy!
(I've been told that it does not work in a Toyota Toacoma)