j0ckser: I used a zip tie and black bison tube to make the last (and final) replacement reasoning that the manner and location would probably keep it safe. I guess not. With it (and the bison statue) gone, there's little point in continuing.
It had a good run as urban caches go - 3096 days from the publish date to the disabled date, end date included; or 8 years, 5 months, 21 days, or 101 months, 21 days.