Checked your map link and funnily enuf, a ways before that area (further north?) it showed the Google map car passing another vehicle with the double line indicating a no passing zone.
So the motorcyclist isn’t the only one ignoring the double lines. Photographic proof. Ooops!
Nah. The google cars have cameras facing forward, left, right, and back. So the google car was just travelling in its own lane and you’re viewing the rearward images.