I have worked some sort of road work for approximately 50 years. I have seen people drive through roadblocks; some have to get out of their vehicles to do so.
Where were the signs and on this particular road and flagmen? Or do they not realize that other people travel that road?
But never have I ever heard of a BOSS or the lowest employ ever endangering an oncoming vehicle by throwing anything at or in the road in front of them and especially a school bus.
Had this been a contractor, there would be inspectors traffic control and local police on scan demanding that this person is removed and possibly arrested.
I believe that this person should be relieved of all responsibilities, elected offices, and fired immediately.
To think of the lives He was endangering, not to mention the example set for the other employees working for the county or any other road worker.