You will need to set up an intermediate location. You're probably not going to do 1500 miles without stopping, so just set a favorite to the hotel or house you'll be staying each evening and just navigate to each of those in turn.
Just load this app on my Iphone. Tried to set a favorite in fl while home in NY. Waze could not find the address or city in fl. Is this a communiting only app? do I have a distance limitation or is it because i'm classified as a baby. ANy help would be appreciated.