First, a little bit about me,
I am a school bus driver currently for a contract company, one of several in our county. Most other counties around us have county-run drivers instead. So I'm not certain how things go with county-run drivers, or with city buses. I'm also relatively new as a driver, just starting this year.
I realize everyone has their own points of view about things, and I only wish to share mine.
To the original poster, I'd advise reporting that driver. Most school buses will have the county or company printed on the side and perhaps even a contact number near the front. Or you could look up the school board number.
In either case, the bus number identifies the driver. Drivers have to pre-trip their buses before every route, and paperwork is the method to cover themselves, someone knows who was driving the bus at any given moment. Reporting the driver is worth something, even if no disciplinary action is taken at that particular time.
Drivers here must have clean motor vehicle records to become drivers, and we are trained extensively, to obtain a CDL class B with Passenger and School endorsements. In addition, we receive on-going training in regards to safety. Again, we may not be like other school bus drivers, but I have witnessed my share of unsafe practices by many motorists, including city and other school bus drivers, some in my own company. I have reported every single one, including once when I stopped at a railroad, but forgot to actually put the bus in park and open the door to listen properly, and once when I activated my student lights to let a student off, but accidentally put the master switch off in the process. The master switch must be on for the student lights to function (not sure WHY its a two part system...).
There will be a level of idiocy, neglect and general complacency in every area of employment, and they need to be weeded out systematically. People need jobs and take what they can get. Training and passing tests only does so much. Just look at the kinds of idiots who own a regular driver's license.
In general, I'd say if you feel victimized in any way in anything you are doing, do something about it. Even if your efforts are frustratingly ineffective in getting the immediate result you desire, perhaps in time you will. Also, please always take a step back and realize that something like this may not have been done intentionally. The driver may have not realized you needed more space, may have not been paying attention, any other reason. While inattention or negligence is also not excuseable, simply realize that not everyone is doing things to antagonize you specifically to be mean. Then again, some are. /shrug
Do what you think is right, and in the meantime, get your sympathy and advice here.