Officers pulled over 20-year-old Arianna Mojica in Elsmere for speeding on Monday.
Police say they searched her vehicle after learning she did not have a license and was on probation.
Officers allegedly found two fake iced tea cans filled with bags of drugs, including powerful opioid fentanyl.
Mojica's four-year-old step-daughter, who was the child in the car, is now with a legal guardian.