I was over the limit by 0.5.
You must mean 0.05. A blood alcohol content of 0.5 would have you unconscious, or worse.
Does this mean you'll have to serve the remainder of your back time, plus the DUI sentence. Best of luck to you, whisper.
In Pennsylvania drinking any alcohol at all while on probation/parole is a violation. You can't even have it in your house.