There is a haunted house in texas that had movie-grade werewolf suits (Verdun haunted manor, part of Thrillvania); from a low-resolution night vision security camera, someone wearing one of those out for a stroll would fit the bill. (the place is nowhere near Amarillo, sadly, but one of the actors who got a retired suit (or made one of their own) might be doing it for a laugh or three…)
Short answer: probably, but with a mischievous sense of humor.
Long answer: possibly, and trying to get the zoo population riled up, or cause other problems.
