“Come as you are in the family car” (drive-in slogan)

“Come as you are in the family car” is slogan that was used in advertisements for drive-in movie theatres. “Come dressed as you are in the family car” was cited in a drive-in advertisement in a 1950 Trenton (NJ) newspaper.
 
“Come as you are in your family car” was cited in a drive-in advertisement in a 1951 Seattle (WA) newspaper and “Come as you are in the family car” was cited in a different drive-in advertisement in a 1954 Seattle (WA) newspaper.
 
     
14 April 1950, Trenton (NJ) Evening Times, pg. 32, col. 2 ad:
LAWRENCE DRIVE-IN
A Walter Reade Theatre
COME DRESSED AS YOU ARE IN THE FAMILY CAR
 
23 March 1951, Seattle (WA) Times, pg. 25, col. 7 ad:
COME AS YOU ARE IN YOUR FAMILY CAR
(Sunset Drive-In Theatre—ed.)
 
1 August 1954, Seattle (WA) Times, sec. 3, pg. 4, col. 3 ad:
UNITED DRIVE-IN THEATRES
COME AS YOU ARE IN THE FAMILY CAR
 
23 July 1955, Los Angeles (CA) Times, pg. 12 ad:
COME AS YOU ARE…IN THE FAMILY CAR
   
Google Books
Lost Illusions:
American cinema in the shadow of Watergate and Vietnam, 1970-1979
By David A Cook
New York, NY: C. Scribner
2000
Pg. 401:
Pacific Theatres’ slogan for its southern California customers became: “Come as you are in the family car.”
 
Google Books
Frommer’s Los Angeles 2011
By Matthew Poole
Hoboken, NJ: Wiley Publishing, Inc.
2010
Pg,. 19:
Long established as a teenage makeout haven, one theater gained popularity in a more spiritual way when Reverend Robert Schuller began to deliver Sunday-morning sermons to a comfortably parked audience at the Orange County Drive-In. His slogan: “Come as you are, in the family car.”
     
The Plain Dealer (Cleveland, OH)
Drive-in theaters fighting to survive against modern technology
By Michael Sangiacomo
on June 08, 2013 at 8:00 PM, updated June 10, 2013 at 10:57 AM
(...)
Reding’s grandfather bought the theater in 1957 along with the slogan: “Come as you are in the family car.”