So, it sounds like this issues may be addressed in the next rollout of Field Maps (hopefully).
But, for those of you who are looking for a workaround, I have one now.
I have kept most everything the same (set Title field in Popup config, have address layer with NULL color as I only want the search capabilities, not displaying them).
Turns out when offline, the search will find features whether the searched layer is visible or not. So, in the map viewer (either one), I have the popups enabled/configured, but, for the searched layer, I have the layer visibility sliders all the way to the right. (on my map, that is 1:15-1:0).
So, the addresses don't display until I am zoomed in farther that I will ever need, and as such, are not available for the popup until I zoom in so close, the chance of actually clicking on one is nil.
If I later decide I want to "see" the search layer, I will add it a second time (from a view) and configure it to draw, but popups disabled.
Hope this helps someone.......
R_