Sending Activity into OFFS With Geocoordinates Only and No Service Address

I am working with a construction company that in many cases is performing work in very rural locations on railway related projects. They will have the GIS based coordinates tied to the project but in many cases the address is ‘just a suggestion’ or really may not exist. The field resource is not using OFS for navigation purposes. We just need to be able to book that multi-day activity.

At one time I thought it was possible to send an activity into OFS with only coordinates (no street, city, state, zip) and OFS would not do any validation on those 'location’ coordinates. I am looking in Business Rules and don’t see anything related to this.