City attorney Dugan Comer made the plea offer during a private pre-trial conference, said Englewood police investigator John Hoehler, who is releasing information on the case.
"An offer was made, and Jake's attorney was going to discuss it with his client," Hoehler said.
Hoehler said he did not know the offer's details. Comer's office referred all questions to Hoehler, and a message left Thursday by The Associated Press for Plummer attorney Harvey Steinberg was not immediately returned.
Another pre-trial conference in the case was scheduled for Aug. 3.
In May, Plummer was issued a misdemeanor municipal summons of "injure or destroy property," similar to criminal mischief under state law.
The summons alleged Plummer was involved in an altercation April 20 with Douglas Stone of Denver. According to the complaint, Plummer kicked a headlight on Stone's pickup truck and then backed his Honda Element into the vehicle.
Plummer has denied the claim, saying he accidentally cut Stone off while talking on a cell phone.
He said he waved to apologize to Stone but was bumped from behind. He got out of his vehicle, saw no damage and then called 911 to report the incident, Plummer said.