Could he have eaten any wild berries at the park? We have red berries that grow here in the winter that the birds just love because it makes them high! I've seen the cats that run wild eat them as well, and they go into such a trance like state. These red berries grow on low bushes and fall all over the area which can blow long distances. They are small, round and smooth. Some mushrooms have the same effect, and others can make them very, very sick. Lots of things grown this time of year are toxic. I hope your boy recovers from whatever it is without complications poor guy.
