Well.. the bottom line is that you need to tell a little white lie...  This is what worked for us:
Look at the Starlink coverage map and find an area not waitlisted. Open google maps and find that area. Drop a pin somewhere not on someone else's address. We used a field in Kansas. Click the GPS coordinates link (for the pin you just dropped) at the bottom of the screen on google maps. This will bring up that location's details on the left. Copy the google plus code that looks like 85XX+CV7 Glasco, Kansas Go to the main Starlink page and paste that plus code into the service address box and click order now. Ship the gear to wherever you want. When you get it, set it up and add the Mobility option.
We must convey that this process worked for us in April of 2022, then again in June of 2022 (for the cabin). We make no guarantees this still works. Use at your own risk.