This is the path "Oumuamua" took. It used the sun for trajectory acceleration the way we use, too.

The nominal trajectory of interstellar asteroid ʻOumuamua, as computed based on the observations of October 19, 2017 and thereafter. The observed trajectory deviated by an acceleration that corresponds to an extremely small ~5 microns-per-second^2 over what was predicted, but that's significant enough to demand an explanation.

Basically, what that means is that our current astrophysics does not agree with a trajectory and speed that occurred in the observation of "Oumuamua." Something altered the expected trajectory and speed. Quite possibly that altered trajectory and speed were controlled by intelligence.