In this siuation it sucks that they know the real reason why you didn’t go in but still, they do not have the right to write you up or anything like that due to the drinking the night before.
My GF got “let go” and collected unemployment. Her employer disputed her unemployment and said she did not call in properly one day. (She had left a message as it was early and no one was in). NYS now wants their $$$$ back. She has to go and state her case and see if they will let her go on the $$$. She had a doctor’s note, etc. In the end, I think they will make her repay the money as she did not follow the employer’s policy of having to call and talk to a manager.
That is why I say they can screw you on the “no call in” if that is their policy.