Israel handles similar situations with armed drones and helos. Bus and command car never arrives.
They used to use Ruger 10/22s for riot control:
UPDATE UPDATE: I have been given further information from an anonymous source. The Ruger is used by the IDF for
o Injuring leaders of violent demonstrations or violent participants of a violent demonstration.
o The IDF uses it as a mid-range system that is less lethal than military caliber rifles (5.56mm/7.62mm) and capable of hurting severely enough to stop them using committing violence (throwing rocks or molotov cocktails).
o Can be used more accuracy at distances, unlike a rubber bullet or baton round.
o It is used when it is not safe enough to get close enough to use a rubber bullet or baton round.
https://www.thefirearmblog.com/blog/2015/10/21/israel-adopts-ruger-sr-22-in-less-lethal-sniper-role/