Well, anyone can sue for just about anything. But your question is valid. I lean to 55% non lawsuit eligible. If there is one good thing though, it is that it was captured on video. It can be distributed to thousands of people, and used in future cases of harassment to show a pattern of misconduct by the officers regarding people exercising their right to carry.
The cops were suppressing his protected rights. That has been used by the left for many years to enact social change through the courts