According to the site DUI Driving Laws, the fact that Williams is both on his third offense and had a BAC of +15 complicates things badly for him:
The administrative penalties for a BAC alcohol level equal to or greater than .15 are as follows:
Fine up to $10,000
License suspension from 5 to 15 years
Vehicle immobilization for minimum 5 days and up to 8 months or vehicle impoundment
Installation of Ignition Interlock Device if judge orders
Attendance at chemical dependency education or treatment program
It should also be mentioned that Nebraska does allow plea bargaining for these offenses.