The cornering lamps are one of the reasons I wanted the HIDs in the ST3.
I've seen reports that you can enable the eyebrow LEDs as DRLs, and also reports that you can't. Seems to depend on when the car was built, or which version of the programming software your dealer has, or who knows what. Maybe some obscure US regulations somewhere. You could no doubt take matters into your own hands and rewire the electrical harness, but that's too much trouble for me.