DO NOT ATTEMPT THIS FROM THE FREEWAY!
The cache is hidden inconspicuously, but not at the posted coordinates. Solve the KenKen puzzle below, substitute for the ABC and XYZ and you'll find the final coordinates. The hide itself should be clear to experienced caches, but may give noobs some trouble.
N38 20.ABC W12X 00.0YZ
Vg'f abg rnfl orvat...