Hello I'm a cover driver and had to leave on an emergency call. I finished delivering my air and called the center and told them of my situation and they told me to drive back in. when I made it Into the hub my supervisor stopped me and was really upset and threatened to return me back to my twilight shift as a loader. I've been having personal issues and i let them know ahead of time. Today was different because I got the call when I was already working and had to leave. Can management punish me for going home or am I in the clear since they let me leave without me calling in?