But Prozanski and all the other legislators drive cars. Why aren't they guilty of conflict of interest like you claim Prozanski is for riding a bike? 
And do you have something against those who drive a Prius? What if it was a  Ford C-Max hybrid? Would you have the same belief it would be an "oblivious" liberal?  And what type of vehicles meet your criteria that the driver is not an oblivious liberal?  What vehicle type do people like you drive?
I know that I for one, have issues with young cowboys driving lifted trucks with giant tires extending well beyond the wheel well, flying Confederate flags while spitting chewing tobacco, listening to country drinking songs and rolling coal. But I am trying to not be so quick to judge.  it could be his wife's car.