At around 10:30 a.m., Lethbridge police were called to help Lethbridge Fire/EMS after an SUV was found blocking both eastbound lanes on 13 St N, near 5 Ave N.
Investigators said a passing motorist came across the vehicle and found the woman unconscious behind the wheel.
READ MORE: 6 taken to hospital, driver given Naloxone after Calgary crash
The motorist called 911 and started performing CPR, when a second motorist stopped to help.
Paramedics then took over and treated the woman for a suspected fentanyl overdose. She regained consciousness and was transported to Chinook Regional Hospital.
Investigators said the woman was in the Tim Horton’s drive through immediately before the overdose.
READ MORE: Calgary police concerned about spike in serious crashes involving fentanyl use
Mariah Shanice Old Shoes is facing charges of impaired driving and dangerous driving.
Her next court appearance is scheduled for Jan. 24.