My pleasure. Thank you for your reply.
1) Unfortunately, yes, the way the law is written, he can still lose his driving privileges for up to 12 months (and no less than 6 months), even though he wasn't driving a car. The law does allow, upon a showing of hardship, the judge to grant a person a hardship license to go to work/school, for example, though the law also allows them if they do so, to require that a person be monitored during the time they have a hardship license, to be monitored by probation or an alcohol safety program.
2) I would not simply show up and plead guilty. The state still has the burden of proof, and he should at least talk to a lawyer about what happened and come to a decision only after speaking with counsel. Even if he pleads not guilty, he can always change his plea at a later date, and he will not be penalized in any way because of that.
3) Whether he performs community service or is issued the $500 fine is at the discretion of the court. Similarly, I cannot tell you what the court costs or program costs might be, because those will vary by judge, county, state, etc. It is something he would want to discuss with a criminal
attorney who is familiar with the judges in your county who can give him an idea as to what sort of penalties the judges give out if a person pleads guilty or is convicted as a first offender.