That was a pretty cute actual development (not the arrest joke part). Apparently the same penguin was so enamored with that penguin girl from Kemono Friends, that he keeps watching her intently every day. If I get a chance to get back to Japan before the event ends, I will have to check it out.
The whole Kemono Girl event is a really cool little promotion to help raise money for the zoo and ties in naturally with the show. Hope to see more events like it in the future.