He agreed to complete a one-day anger management class to resolve the criminal case.
Prosecutors, meanwhile, said in court papers the 60-year-old star told a police officer the other driver "stole my spot", used a vulgarity to describe him, and acknowledged: "I did push him".
Notorious hot-head Alec Baldwin will begin court-ordered anger management counseling.
Prosecutors offered the compromise after reviewing video of the confrontation, looking at medical records and talking to the victim and witnesses, prosecutor Ryan Lipes said.
In exchange for the plea, the larger charge of attempted assault and harassment was dropped.More news: DxOMark to begin scoring front 'selfie' camera on smartphones
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"Normally, I would not comment on something as egregiously misstated as today's story".
In a second tweet, Baldwin continued, "The press reported that I punched someone". The individual was later taken to a local hospital. "I wanted to go on the record stating as much", he posted on Twitter a year ago.
"I realise that it has become a sport to tag people with as many negative charges and defaming allegations as possible for the purposes of clickbait entertainment". "Fortunately, no matter how reverberating the echos, it doesn't make the statements true".
And in 2011, he was thrown off a plane for "extremely rude" behavior after refusing to turn his cell phone off.
Baldwin will also have to pay a mandatory surcharge of $120 and provide proof of payment and completion of the anger management courses by March 27.
In 2014, he was detained by NY police for riding his bicycle the wrong way down a street. He is also known for portraying network executive Jack Donaghy in NBC's "30 Rock" sitcom.