Address verification when creating a new BP

We've are implementing GEOCODING with a third party.  This thrid party not only sends back the longitude and Latituide, but does address verfication.  

In config, I've specifid our custom class and in the method, GEOCODE_ONE_ADDRESS the long and lat get updated, but I also want to update the address withe the correct data that came back (example zip+4)

The strucutre used for transferring the address is only and import parameter and I can change it.  Nor does there seem to be another structure or method for this purpose.

Any advice?

Thanks,

Cat