To modify any current parenting plan, go back to court and have the court order changed with new details to clear up any confusion on how the parenting plan is to work, both of you need to talk about these changes and work something out if you don't plan on going back to court with these issues of the parenting plan.
Its all about the money, not drunk driving. The police, courts, lawyers and insurance companies make billions of dollars off people who have been arrested for drinking and driving, not drunk driving, drinking and driving, huge difference. People who have been arrested for drinking and driving are your average, middle class working people. they have jobs, careers, and have the means to pay all the costs associated with their arrest. that's why you see drunk driving task forces out every night. they know busting someone for drinking and driving will be far more profitable than going after a mugger, or a rapist. real criminals tend to not have jobs or money.
Trust me, the insurance companies LOVE drunk drivers. they wish everyone could be arrested for drinking and driving. Insuring someone who's been convicted of a DUI is a huge profit for them.