I don’t know what the protocol is on what the SS would do, let’s hope we do not find out.It is my understanding that the Secret Service, while protecting someone, follows very different rules of engagement than what the police and military are stuck with.
A few years ago, Sarah Palin was in town. I heard that some of the locals, wearing masks, tried to block her motorcade and probably would have been shot by the Secret Service if the local police hadn't cleared them out of the way first.
It's VIP Level Protection - they are poised to detect and STOP threats with whatever action it takes to do so. That Mohammed cartoon show at the Curtis Culwell Center in Garland last year had that level of protection - there wasn't nor was there going to be any freeze!/drop the weapons/get-on-the-ground stuff. Those clowns were dead ducks as soon as they rolled onto the property.