They weren't on drugs - they were being technical. Technically, Bear is not a town, or a city, or anything like that - it is a "census-designated place." (See http://en.wikipedia.org/wiki/Census-designated_place)
I agree, though, Bear is getting bigger, and crime seems to be on the rise. In order for Bear to get a police department, though, I think we would have to meet some legal guidelines (like filing the appropriate paperwork with the state to become a town, or municipality, or something) in order to do so. I wouldn't have the faintest idea where to start.