Sharp Auto Spa & Lube Center Crashed my vehicle Nj Newark

My mother went there yesterday for a Car wash. And one of the employees business crashed into the sign and totaled her car. Cherry topper, by the time the cops arrived the employee had left the scene and gone home as per the manager. Even though when I was on the phone with the manager at that time since my mother called me, I requested him for the employee to stay at the scene.

And the manager decided to get loud with me and not tell him how to do his job, then proceeded to hang up the phone on me. So the manager has employees that can't drive a car into the car wash, manager didn't keep his employee at the scene of an accident and manager doesn't have any address or contact information of the employee.

But I shouldn't tell him how to do his job, or maybe he shouldn't be the manager.