In all honesty, I would have done exactly the same thing you did -- aim for the side of the road while braking like hell to scrub off as much speed as possible in case I did hit something. I'm glad you are OK and everything worked out.
Winter sand is a bitch -- I've lost traction in the rear tire twice on my VFR and both times were on sand.
You couldn't hear a dump truck driving through a nitro glycerin plant!
Badasses might screw with another badass. Nobody screws with a nut job.