Interacting with Address fields

Is there any way to programmatically interact with a field type Address when lat/long (coordinates) option is selected on the form? Neither Pipelines nor Form Rules seem to be able to cope with this. I believe I can populate these Address subfields programmatically but that's not an option in this case because street addresses are not applicable (there are none on this large site).

In Pipelines, Latitude / Longitude fields do not appear in the schema and you cannot directly update the Address primary field. You must choose a subfield, none of which are lat/long.

Form Rules is even worse in that it doesn't recognize any other valid fields with which to change the Address field value to. Presumably the only valid option would be some other address field which is not very useful.

The goal is to not have users input lat/long but instead look those values up after a user has selected a friendly name (like a building number).

Screenshot: https://i.imgur.com/hA1WASz.png