It’s written into the laws of most states, that all kinds of traffic laws can be violated when responding to an emergency with lights and sirens.
And I know of no state that mandates two hands on the wheel.
In any case, sorry for the pedestrian, but if you get run over by a cop car with lights and sirens on, you bear a lot of responsibility unless the cop ran up on the sidewalk or something.
See post 24.
L