The drunk in the car was Dick Cheney himself.
The movie Vice begins in 1963 as a young Cheney is driving drunk and gets caught in a traffic stop.
Here’s the clip from the VICE movie script:
EXT. DESOLATE ROAD - NIGHT - LATER
The RED TAIL LIGHTS of a battered 1949 Frazer Sedan SWERVE BACK AND FORTH ERRATICALLY. Dick is at the wheel. Very drunk.
POLICE LIGHTS FLASH behind him.
POV A HARSH POLICE FLASH LIGHT HITS THE DRIVER SIDE WINDOW AS DICK LEANS HIS HEAD OUT.
DICK How you doing tonight?
OFFICER I need you to get out of the car.
Dick gets out and IMMEDIATELY STUMBLES TO THE GROUND.
SFX: A LOUD BLARING ELECTRONIC SIREN
This situation is based on a true account. In real-life, in 1962 at the age of 21, Cheney was convicted of driving while intoxicated (DWI) and arrested for DWI again the following year. Cheney previously said in a 2001 New Yorker interview, "I was headed down a bad road if I continued on that course".
