Corrected entry: Niles says that after failing to confront Maris, he was turned away from the Oregon border check for having fruit in the car. Oregon is an interior state, and therefore without any form of border check. There might be a border check at the border with California, but Niles is approaching from Washington.
LorgSkyegon
19th Feb 2013
Correction: Niles is referencing the very common USDA produce checkpoint that exists at points along the Washington/Oregon and Oregon/California borders.
I have never once encountered a produce check when entering Oregon from Washington. And Niles would have been on I-5, definitely no such check stations anywhere.