Probably the same everywhere – I was told if you fail in the morning due to possibly to having been drinking the night before then DON’T BLOW AGAIN. At next calibration check just say it was mouth wash and you got a ride to work. It is the ‘two fails in a row’ that triggers the vast majority of extensions. You may be out of luck – basically your interlock provider will have you write your excuse and they forward that to motor vehicles.