The incident began shortly before 11:30 a.m. on the highway in Hilltown Township, Bucks County.
According to police, the driver - identified as 68 year old Evelyn Carboni of Perkasie- got on the highway at the Perkasie interchange and began driving south in the northbound lanes.
Police say Carboni traveled four to five miles in the wrong direction.
Instead of calling 911, one man following behind whipped out his cell phone camera and recorded the wrong way saga. It's a decision, police say, added to the potential danger.
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Fortunately, police officer Jerry Fish was waved down by another driver who saw the woman entering the expressway.
"I drove for about a mile and a half before I actually caught up to her. She was driving at a normal speed, 50 to 60 miles per hour," said Officer Fish.
The woman was headed to the Grandview Hospital Outpatient Clinic. She got turned around and, police say, she told them she thought she was entering a driveway. It was actually the northbound exit ramp from Route 309.
Officer Fish managed to get her attention pretty quickly when he caught up with her, and she gradually rolled to a stop.
He was surprised to find her alert and aware of what was going on.
"She said she realized she was going the wrong way but didn't know what to do and she figured she would go down to the next exit. I explained to her that she passed two exits already. She had a little bit of wit about her and said there were no exits off to the right," he said.
Carboni spent the night in the hospital undergoing medical evaluation. There was no answer at her home in Hilltown Township on Thursday.
Officer Fish said he was just glad it wasn't a repeat of what we saw in Chester last October when an elderly woman driving the wrong way on I-95 caused several accidents.
The police are still deciding whether or not to file charges against Carboni. They will require that she be re-tested by PennDOT before she's allowed to drive again.