“Why did the strawberry cross the road?”/“Because his mother was in a jam.”

A traffic “jam” riddle is:
 
Q: Why did the strawberry cross the road?
A: Because his mother was in a jam.
 
The joke has been cited in print since at least 1995 and has been printed on images.
 
   
10 July 1995, Detroit (MI) Free Press, “Yak Yuks,” pg. 2A, col. 1:
Why did the strawberry cross the road? Because his mother was in a jam.
From Terra Teague, 9, Monroe.
 
Google Books
January 2006, Boys’ Life, “Think & Grin” pg. 53, col. 2:
Jared: Why did the strawberry cross the road?
Bob: Why?
Jared: Because its mother was in a jam.
Jared Smith, Fortville, Ind.
 
Google Books
Let’s Eat in the Funny Zone
By Gary Chmielewski
Chicago, IL: Norwood House Press
2008
Pg. 15:
Why did the strawberry cross the road?
Because his mother was in a jam!
 
Twitter
Amy Marie Zika‏
@amymarie1001
Why did the strawberry cross the road?1?!?!  Cause his mother was in a JAM!!  hahahaha
3:29 PM - 22 Dec 2008
 
YouTube
Jokes - Why did the strawberry cross the road? Because it’s mama was in a jam!
jokesus
Published on Oct 2, 2015
Joke :
Why did the strawberry cross the road? Because it’s mama was in a jam!
 
Reddit—Jokes
Why did the strawberry cross the road?
submitted January 10, 2017 by ksaj
There was a traffic jam.
 
Reddit—Jokes
Why did the strawberry cross the road?
submitted March 5, 2017 by aphantasiac
Because his buddy was in a jam.