[JoeyP]

Obsessive behavior is often a sign of a dog that needs more activity during the day
Try the extra walkings
You can also try bringing him to places that will excite him and use his senses more
Dog parks
The Beach
even out with you to a dog friendly cafe

At the same time you want to stop the bed behavior
Try this
Open the door to the backyard
The minute he starts patroling ..... in he goes
wait 10 mins and do it again
everytime he does the same behavior ... stop him by bringing him back into the house