Were you surprised Dawesome?
On yet another anti-cyclist rant on the community forum I run a nurse stated categorically that pedestrian cyclists kill and had done so in our borough to somebody she had nursed. Knowing this was untrue and that she might mistakenly be referring to a death of an elderly man crossing a road (i.e. neither he or the cyclist was on the pavement) I challenged her to find some evidence.
She couldn't as it "had been suppressed by the press". No, she could not remember when it was or how she had been told. You really can't win these arguements. A certain group of people have decided what they want to believe and that's it. Telling them to check the facts just winds them up even more. Especially if they are local politicians.
I have no idea what you can do about it beyond making a bad situation worse.