Anybody know what this is all about?
What were you doing when this came up? Maybe it's just an old request that it never filled because you never allowed it in the first place.
If you want, you can turn off location based services in Sys Pref > Security
Aside: in unix-based systems, such as OS X, a lot of processes that do stuff in the background are called daemons, and are denoted by a single letter 'd' at the end of the process name.
Just open up Activity Monitor and set the filter to 'All Processes'.