They obviously had a ton of skills and had prepared for the worst with a massive stash of food and water.

As the months passed, the pair discovered they were going through their food much faster than they had anticipated. Ninety percent was gone by the time they were rescued, some of it having been fed to their dogs after their pet food supply ran out.

Though I'll bet that after 30 days they would have gladly exchanged their life savings for a PLB.