Just came across this case where a California Highway Patrol officer tried to arrest a firefighter in the midst of treating people injured in a traffic incident, simply because he refused to move a fire engine that was blocking a lane of traffic on the highway to protect first responders and the patients they were attending to.
The underlying ideology doesn’t depend on state actors. When there were road blockings (because of climate protests) in Germany, motorists sometimes became violent against the cause of the blockade (protesters in this case). Sure, climate protest and emergency response don’t compare, but the motorist ideology is the same.