Video from a dashboard camera inside the officer's vehicle, obtained by Dallas-Fort Worth station WFAA-TV, revealed an intense exchange in which the officer threatened to jail Moats.
He ordered Moats' wife, Tamishia Moats, to get back in the SUV, but she ignored him and rushed inside the hospital to see her mother, Jonetta Collinsworth, 45, and was by her side when she died a short time later. She had breast cancer.
"Listen, if I can't verify you have insurance...," Officer Powell said. "My mother-in-law is dying," Moats interrupted.
By the time the 26-year-old NFL player received a ticket and a lecture from Powell, 25, at least 13 minutes had passed.
The Moatses, who are black, said they can't help but think that race might have played a part in how Powell, who is white, treated them.