Qualified Immunity has been interpreted so broadly that it is virtually unqualified - it is almost impossible to actually bring a case against a police officer

Qualified Immunity has been interpreted so broadly that it is virtually unqualified - it is almost impossible to actually bring a case against a police officer for something that happens while they are on duty. General incompetence and ignorance of the law have been used as justification for invoking qualified immunity. I'd be willing to bet there is almost no chance of successfully suing a police officer over something like this.