In Nebraska, English already IS the official language.

GREENWOOD, Neb. -- The Nebraska State Patrol stopped a truck driver who
only speaks Russian, and told him he can go no further until he learns the
language, Omaha TV station KETV reported.

[At this point there is a "Let me see your papers!" exchange.]

The trucker had all his documents in order and a valid commercial driver's
license, but he couldn't communicate with state troopers. Under the law,
troopers were forced to make the driver park his truck and take him out of
service.

They talked to his boss on the phone.

"You need to tell your driver he is out of service until he can understand
English," Trooper Jeremy Radford told the boss over the telephone.