At least four unsuspecting drivers, including a Wake County sheriff's deputy, ran over the debris.
"I came across the railroad tracks and the whole road was covered in the giant boulders, bigger than my feet," driver Matthew Mitchell said. "It was too late, by the time I saw it, I slammed on the brakes and still ran over it."
The college student says he is plenty angry, because the debris damaged his tire and ripped the oil pan off his car.
"It's hard to believe that someone just did this to do it," Mitchell said. "It looks like a dump truck lost its load, but to purposely do this is not right."
And Wake County Sheriff Donnie Harrison agrees.
"So any time you're doing something in the road where there could be an accident, you never know how people are going to react to the things in the road, so they could hit a tree or whatever and the person who throws it out there is responsible and will be charged," he said.
Authorities say 19-year-old Sean Courtney Elrod of Raleigh was arrested after officers searched a nearby wooded area for almost an hour.
He's facing two counts of injury to personal property, among other charges. The teenager is currently being held at the Wake County Jail on a $4,000 bond.
Officers indicated that he might not have acted alone, but as to whether there could be more arrests remains to be seen.
The case is still under investigation.