But you don't need to escape the earth. You just need to enter the influence of the UA like the sun, moon and other celestial objects.
And how would this not involve escaping the earth?
That would depend on where the influence of the UA begins.
The UA begins on the underside of the earth. It extends for billions of miles "up" into space. We may never know exactly where it ends unfortunately.
Then according to your description, we are being accelerated by the UA, and are currently floating at the earth's surface. Obviously, that is not the case. Some have suggested that the earth prevents the UA from accelerating us by blocking or deflecting it, yet it accelerates the sun since it is further from the earth. Therefore, at the surface of the earth, the UA has no effect, but at some point between there and the sun, it does. Where is this point?