Fun-Park, which is located by the resort town of Tornby and close to the slightly larger town of Hirtshals, is one of several farm zoos in Denmark. Like other farm zoos, they don't have an official zoo license and can thus only exhibit species that you can keep in private hands.
Fun-Park keeps around 30 species of animals in scattered, clearly home-made, and often mediocre exhibits, and since none of the species are even rare, it's really not a place to go out of your way for. Families love it, however, because there's a lot of play areas and kiddie-friendly activities.
I'd imagine the circumstance here is a bit different -
seeing as Denmark is part of the EU, and there are laws heavily regulating this and other species in the EU, I would imagine that coatis are not allowed in Denmark private hands - and perhaps the animals here are remnants of times before these laws were passed.
Yes, they are as illegal to breed here as in the rest of the EU, but both zoos and private owners are allowed to keep the remaining animals until they die, so there are still some middle-aged and elderly individuals left. Before that law passed, they were among only a very few carnivore species that could be kept legally by private people in Denmark, and I think the ones in Fun-Park are maybe 10 years old.
That being said, I don't know how strictly the law is enforced. Fun-Park also keep coypu, and some of them looked like juveniles when I visited this year. I've also heard of another zoo in Denmark that bred coatis after the law passed.