Sorry, if you can't handle the stress of dealing with the public, and dealing with dirt-bag criminals, and understanding the difference between the public and the dirt bags, even assholes, you have no business being a police officer, and you need to be released from your position before you blow a gasket and shoot someone. Being recorded should be an expectation, he's a public employee, paid by tax-dollars.
Window washers aren't arms of the government, out about in public, enforcing the law of the state/county/city, and potentially violating the rights of their customers. Scrutiny of those who wield power is a good thing.