"I just kind of looked over and I was like, 'Whoa, what's going on?' And I just saw the guy driving on the wrong side of the road," said Stephen Starr.
Starr was heading home from work Monday in Hudson when he captured a wrong way driver on his cell phone in broad daylight.
"There were cars coming straight at him, and he just kept going. He was doing probably 50 mph, too," said Starr.
In the video, you can hear a car horn as the vehicle flies down US 19, narrowly missing a car turning into a gas station.
"I was kind of riding next to him for a little bit, I just kept honking and honking and honking and he just looked at me," said Starr.
Pasco County investigators say they believe 53-year-old Victor Casarella was the man behind the wheel.
They say he eventually turned off U.S. 19 at Fox Hollow into a Race Trac, where deputies witnessed him walk out of the store and get back into the car that matched the description.
Casarella refused a field sobriety test and deputies immediately placed him under arrest for DUI.
"I was expecting to hear on the news that someone had a fatal accident or something like that and died," said Starr, who only recorded the vehicle for about a mile and a half.
Casarella allegedly traveled a total of four miles from Hudson to Port Richey through busy traffic, but somehow no one was hit or injured.
Deputies say it's because Starr wasn't afraid to do the right thing and call 911 immediately.
"It was scary. It was mind blowing. I was just hoping no one got hurt," said Casarella.