The man in the car got upset when she talked to the Uber driver, and charged at her as she called police.
"A bouncer from a Downtown bar just got off work and was on his way home, when he saw what was happening," DeSpain said. "He called for the woman to come to his truck while yelling at the man to stop."
The suspect ran before police arrived.
The suspect is a black man in his 40s or 50s, 6 feet, 4 inches tall, wearing a jean jacket with white sleeves and a gray hooded sweatshirt.
Family shaken but unhurt when alleged drunken driver crashes into home, Madison police say
No testimony about violent reaction to seeing guns, judge in Marshall homicide case rules
Woman's attorney disputes Quintez Cephus' claim he is victim of racism in sex assault case
Suspect allegedly battered homeless man, Madison police say
Racine man allegedly exposed himself in store, Madison police say
Beloit man arrested again; allegedly fondled himself, Madison police say
Man arrested in East Side armed robbery, Madison police say
Shoplifter took computers from Walmart, Beloit police say
Complaint: Madison man attacks ex-girlfriend for reporting previous beating to police
Driver in hit-and-run that caused death of Waunakee man sentenced to 6 years in prison