Off topic here but they don't need to worry about the dog who jumped the fence not having all its shots. It is the health of their dog that would be the concern. Over vaccination is a huge issue, cancer is more prevalent in dogs now than it has ever been and it just so happens that there are more vaccinations than there ever have been.
Ever think how the people who never take their dog to the vet and just tie the dog to a tree in the yard and forget about it get to have their dogs for many many years but the ones who take their dog to the vet every year for their shots lose their pet at a somewhat early age.
My dogs had their first round of puppy shots only because that is what the breeder gave them and nothing more. I do have one pup that just got innoculated because he was a rescue and they did it before I picked him up, he had a reaction from it. I have titre tests run to make sure immunity is good and as documentation for the dog warden, kennels, etc. but other than that, I let their bodies handle the rest. I feed a good food and they are all in perfect condition.
Vaccinating does nothing more than bombard they immune system, making it weaker than it was before the vaccination. Do a search for Jean Dodds and read the book "Stop the Shots" by John Clifton.