It is a shame, but the law is the law. Unfortunately, he should have checked local ordinances before he moved there. I do feel sorry for him, heaven knows it's not an easy thing to face, but really it is his responsibility to learn about things like that. Sure it's not fair, but in some places even dogs and cats are restricted. When we wanted to start keeping snakes, we made sure to check our county ordinances and then checked with the owner of our mobile home park. The county had no problems, but convincing our "landlord" was not easy. But we eventually got him to do a little research on ball pythons, and once he saw how they stay small and are not aggressive, he agreed to let us keep them on the condition none of our neighbors complained about smell or the snakes being allowed loose. Which of course is not an issue. However, he was so dead set against us having snakes at first, if we had gone ahead and gotten snakes without checking with him, chances our we would have been forced to leave or sell our pets.
I hope he finds a resolution quickly, but I fear it won't end well for him.
Gale