The State can prove a DWI by 1 of 2 ways. That your BAC was .08 or higher, which wouldnt apply in your case obviously, or that your mental and physical faculties were appreciably impaired. This is proven through the officer's observations of you ie your driving, field sobriety tests etc. I often argue to the DAs that if they live by the sword, they should die by the sword, meaning if they always move forward when its .08 or higher, then when the blow is below a .08, they shouldnt proceed....
Absolutely consult with an attorney. You are looking at a possible misdemeanor conviction for an offense involving honesty. Most future employers will pass right over you if they find out about it. There may be several options at your disposal to keep this from happening. Talk to a lawyer asap.
My best guess without seeing the judgment is that the sentence was suspended since you were put on unsupervised probation and you arent in custody currently. If you do not abide by the terms of the probation, then they may activate the sentence. Keep in mind that if you do not like the sentence, depending on which court you were in, you may have some appeal rights but you only have a limited time. Contact an experienced criminal defense attorney if you would like to explore those rights.
If a judge dismissed a DWI for a pretrial motion made by your friend's attorney, such as lack of reasonable suspicion or lack of probable cause to arrest, then yes, the State can appeal that to a Superior Court judge. Sometimes they do appeal, sometimes they don't. Obviously, if they appealed your friend's case, they think they can win it. They can't appeal an actual finding of not guilty, however. Just a pretrial motion.
You need to speak with an experienced DWI attorney. In order the avoid the IID, you need to beat the charges. That said, the officer needs to have reasonable suspicion to investigate you for DWI. Ive included a video on that for your convenience. Talk to a lawyer asap.
It depends on the status of your case. Most likely the case is still open and pending since most people know when a case is disposed of because in NC, most of the time the client needs to be present for a trial or a guilty plea. So most likely it would need to be added back onto an active docket and handled. You should talk to an experienced DWI attorney in the county it happened to figure out what needs to be done.
If he blew a .15 or higher AND he is convicted, he cant get around the 1 year interlock requirement. Even if he waits the one year, in order to get his license reinstated he will need to have the interlock installed or they wont give him his license. That's why he should speak to an experienced DWI attorney asap to see if there's a way to fight the charges.