[no-s]

No, the things a glider. Gravity is the counteracting force. The magnetic field may act differentially on the solar wind particles, resulting in a net force which is other than straight out. Thus you can switch to a transfer orbit which takes you back to Earth. Of course if you end up in solar escape only a close flyby with a planet can fix you up with the correct momentum.

I wonder if it would be possible to add momentum to the intercepted particles? Then the things could go even faster.

[inquest]

The magnetic field may act differentially on the solar wind particles, resulting in a net force which is other than straight out.

How differentially are we talking? It would have to be pretty close to a 90-degree angle in order for this transfer orbit to result in less than a three-year trip back, I would think.