add invisible fence around permiter, dog not wanting to get shocked
will stay away from fence

I have a dog like that her name is puddle.

She a small poodle would jump a 4 foot wire mesh fence, leak out doors,
run all thru neighborhood, chase cars, barking for no reason, got hit
by car... we made new friends police

Finally solved it all by getting puddle a friend, susie.

companion solved all the troubles our dog was bored..........

might be easier to add a friend on a trial basis and see if that fixes
things.

your local animal shelter would likely love a foster parent, and you
can save a life and perhaps get your dog a friend while ending the
behavior problem.

no long term cmmitment, its worth a try and is the cheapest solution.