Yep, the link doesn't work, it doesn't show up in category search and the page is broken for several of the officers (not just me). The Category DOES appear under "My Categories" and on the group details page for the officers. Then throws the error message I quoted if I try to follow that link.
I've notified Groundspeak and they're looking at the problem. Most likely a server error (not waymarkable).
I expect the category will start working in the next day or so. Until then, start looking for those places that make you say "whoops!" and bring your camera!