The confrontation ended without issue, with the officer seemingly convinced that the children - who offered similar explanations for what occurred - were fine, but he asked if he could check in with their parents, Lewis said. Concerned about the children's safety, he drove to his house, and when he arrived, so did the woman - and a police auto.
Apparently concerned for the children's safety, the woman circled back and asked if she could speak with the children to make sure everything was kosher. I got two kids I'm babysitting. Why wouldn't they be ok?' Lewis continues.
"B-W-B which I guess is the new thing, babysitting while black", Lewis said to CBS 46 when the story was first reported. The woman has not been identified and Cobb County police could not immediately be reached for comment.
The children's parents, David Parker and Dana Mango, told CBS46 they were shocked over the incident.
Lewis recorded his interaction with police and uploaded the video to his Facebook page, where it now has more than 446,000 views.
"This lady from Walmart harassed, followed, & called the cops on me".
The mum told CBS46: "I said are you saying that because there's an African American male driving my two white kids, that he was stopped and pulled over and questioned and he said I'm sorry ma'am that's exactly what I'm saying". "I called back and a police officer answered the phone".
The incident is just the latest in a string of high-profile cases involving black people having to explain themselves to police officers after doing mundane public activities in what has come to be known as #LivingWhileBlack. The officer says he has to perform a wellness check and instructs the children to get out of the auto.
By the time he had them buckled up and ready to go, he had his phone out and was live streaming on Facebook as he narrated a story about how the odd woman had begun stalking them after he refused to let her talk to the children, Lewis, 27, said in an interview. "I was just in a state of disbelief", Mango added.
Mr Lewis runs a youth mentoring organisation that teaches life skills to young people with emotional and behaviour issues.
"There was only one thing that she saw that was out of place and that was kids of a different race than the person they were with", Mango insisted.
Parker and Mango told police Lewis is a family friend and their children are in his youth program, called "Inspired by Lewis".