I've never had a driver yell at me, some kids threw a can at me once, they probably didn't have VED or insurance anyway.
It's a fun, but silly campaign, those that feel they have more right to be on the road because they have to pay an additional tax before they are allowed to are not going to be influenced in anyway by a hippy on a bike trying to argue with them otherwise, of course we know, smugly, that cyclists, horseriders and pedestrians have a right in law to be there, motorists need a license, which can be taken away, and have no rights without one.