That's his job.
He was left alone in the house for an hour. I have video surveillance showing the neighbour skulking around on my property.
Sorry, this is the reason we got a dog.
If the neighbour had a problem with the dog barking, he could have asked me "hey, when I come on your property and walk around your house, why does the dog bark?"
If the dog is inside the house, you can't hear his barks from outside of our property, by the way. Neighbour only heard him because he was right next to the house.
Easier solution: don't be an asshole neighbour.
Not sure why you want to regulate what I do with my house and dog, which isn't harming or annoying anyone, while completely missing the point -- the neighbour shouldn't be there.
And he certainly shouldn't have called the police for something that he caused.