On these facts, this is actually a good case. Obviously no guarantees can be made, but it's unlikely that they saw any bad driving since it was a checkpoint. The .08 itself is sufficient to find you guilty, but a line of cases in the past two years has reiterated that a .08 does not require a guilty result. Of course, part of this is going to depend on your conduct - if you did well on the SFSTs, didn't make a ton of admissions, and you were polite/cooperative, walking ok, etc. you have a...
You should talk to a lawyer, or save any statements you want to make until you first talk to a court appointed lawyer. If you have three prior felonies, you may be habitual eligible. As it is, AWDWISI is a Class E felony and with a fairly serious criminal history, you are looking at an active sentence of around 3 years.
If it's a case that was set in 4C in Wake County, then the DA may try to continue the case once if you fail to make the first court date as the victim. But if you miss two court dates, the DA generally will not ask that it be continued given that it's a "People's" case. In order for the case to go forward, you would need to show up.
The three prior DWIs will count. Either you can be prosecuted as an Aggravated Level 1, which includes up to 3 years in prison, with a minimum of 120 days in custody, and up to $10,000 in fines.
Or you can be prosecuted with a Felony under the Habitual DWI statute. The felony is going to be about 2 to 3 years in prison, with the added fact that you'll be a convicted felon.
Treatment will be mandated in almost all cases, but will not allow you to avoid prison time if convicted either of...
You can't get the conviction sealed. You can potentially ask for an expungement, but you have to wait 15 years from the time of the end of probation in order to be considered for an expungement of a Class H or Class I felony.
As the other lawyers stated, you should hire a lawyer. Or get a court appointed lawyer if you can't afford one. You should also ask about a First Offenders program. In most counties, the DA offers a first offender program, community service, and a probationary period (although not true probation) in exchange for an outright dismissal of the first charge.
It does not appear as though you could be charged with Statutory Rape or Indecent Liberties since the age difference is less than 4 years. I haven't thought about all the laws that you may have violated, but one might be contributing to the delinquency of a minor, which is a misdemeanor.
As I posted elsewhere (where you posted this question):
If convicted of the new charges (depending on the severity) you may very well be revoked and serve the time on the new and old sentences (with the possibility that they will be run concurrently).
It is possible for you to get a lesser punishment - such as intensive probation or house arrest - and it'll depend on the judge, the nature of the offenses, and whether you've got any mitigating factors in your case.
No. You have no right to have warning read to you unless the police want to question you while you are in custody. If you are in custody and the police don't want to question you, then it's fine if they don't want to read any warnings.
You would be informed of certain rights at your First Appearance which is the first point at which a judicial official is required to read any rights.
A DWI is a misdemeanor, unless there was a serious injury, death, or it is a habitual DWI charge. A DWI conviction cannot result in a PJC. You need to hire a good DWI lawyer, or have a court appointed lawyer assigned to you. You may have good issues related to your DWI.