No, because this ball leaves the solar system. It was slingshotted with respect to the milky way. >>9366394
It gained (or lost) speed with respect to the milky way. When voyager 1 passed by Jupiter, it approached Jupiter and left with the same speed, but it got a bump in speed with respect to the sun. This is how slingshots always work.
When a satellite enters a system, be it stellar or planetary, it has some potential energy due to gravity (height). As it approaches the system, this turns into kinetic energy, maxing out during closest approach then turns back into potential. Because the satellite enters and leaves at the same height, it enters and leaves with the same potential energy. It does not gain any speed with the host body during a pass, but accelerates with respect to the collective parent body.