Hangzhou police can authorize security guards to enforce the law?

This kind of behavior cannot be called law enforcement. It's just that the security guard is managing the parking lot. Although you didn't park your car normally, the security guard can't impose any administrative punishment on you, nor can you impound your car, even the police can't do so. In fact, the police didn't authorize the security guard to enforce the law, and he can't do this to you. Even the police can't hit you, so if you and the security guard have personal rights, health rights and property rights, you can sue in court.