Thanks @rustymyers !
This will get you the location of that file using relevance: ( only available as ROOT )
files whose(name of it as lowercase starts with "com.apple.locationd." AND name of it as lowercase ends with ".plist") of folders "/private/var/db/locationd/Library/Preferences/ByHost"
On my particular system, there are actually 2 files here, which is a bit odd.
com.apple.locationd.UUID.plist
com.apple.locationd.notbackedup.UUID.plist
The state of location services should be able to be queried through relevance now that I have the location.
This is what the XML representation looks like on my computer:
<plist version="1.0">
<dict>
<key>LastSystemVersion</key>
<string>Mac OS X10.11.3/15D21</string>
<key>LocationServicesEnabled</key>
<integer>1</integer>
<key>ObsoleteDataDeleted</key>
<true/>
</dict>
</plist>
The relevance should be something like this:
integers "LocationServicesEnabled" of dictionaries of files whose(name of it as lowercase starts with "com.apple.locationd." AND name of it as lowercase ends with ".plist") of folders "/private/var/db/locationd/Library/Preferences/ByHost"
I always forget about that.