No body is giving you crap about using fogs in traffic. But here is info from PIAA's website about usage of the different lights.
What is the difference between a fog light & a driving light?
Fog lights provide illumination forward of the vehicle that enhances visibility
in fog, rain, snow, or dust. Fog lights are intended to be used in conjunction
with standard headlamp low beams. Driving lights are mounted to provide
illumination forward of the vehicle and intended to supplement the high beam
of a standard headlamp system. It is not intended for use alone or with the low
beam of a standard headlamp system.