Conversation so far:
Was there anything special about Johnny outside Johnny Carson's birth/death statistics and name?
Carson, an amateur astronomer, was a close friend of astronomer Carl Sagan, who often appeared on The Tonight Show.
Did Carson do anything other than the tonight show?
Carson was an avid tennis player.
How did he do as a tennis player?
Carson's primary tennis teacher was Bob Trapenberg, who taught him for some time, and traveled with him to Wimbledon.
What did he do at Wimbledon?
CANNOTANSWER.
Was he involved in anything else?
He owned several telescopes, including a top-of-the-line unit.
In 1981, the minor planet 1981 EM4 was named in his honor, 3252 Johnny.
Why was it named in his honor?
Carson, an amateur astronomer, was a close friend of astronomer Carl Sagan, who often appeared on The Tonight Show.
What else was related to his astronomy?
Carson was the first person to contact Sagan's wife Ann Druyan with condolences when the scientist died in 1996.
Was he involved in anything else outside of the above?
In 1982, Carson was found to be driving his DeLorean while under the influence of alcohol.
What happened as a result of his DUI?
He pleaded nolo contendere to a misdemeanor charge and received a sentence of three years' probation.

Question: What else happened with his DUI?
Self-contained rewrite: Besides pleading nolo contendere to a misdemeanor charge  What else happened with Johnny Carson's DUI?