Originally Posted by
OnyxTiger
But other than that, what's the verdict here? Am I wrong to be traveling against traffic on a sidewalk to get to school going like 8mph?
Yes. Act like a vehicle (use the correct lanes where cars are looking for same direction vehicle-speed traffic) or behave like a pedestrian (go 3 MPH. Some places you'd also need to walk your bike to be legal, although for practical purposes walking speed alone is enough). Drivers' autopilots aren't setup to deal with combinations of the two.
The driver was negligent for not paying more attention, although you're the one stuck living with any injuries that result.