Unfortunately a large amount of the general public are idiots, having to deal with them and their shit all day would be enough, but to then have some bell mithering about why you're late would definitely help to wipe the big cheery smile off the drivers face and forget their how do you do kind sirs. Where does he think the drivers been? Having a kip? Shagging his Mrs?
I suppose it gives the councillor something to do and shows all is not too bad with our part of the world if the biggest concern of local government is smiling bus drivers, are there no more pressing issues?