Is that what you have done? Or have you just left it as the main beam help?As karl said they are driving lights, providing aid when full beaming! dont worry i was confused at first thinking, where the hell is the button, although you can change the wiring to a seperate switch, bearing in mind you need a relay
You will need to change the wiring then. Not sure what pc plod will say if it's not foggy lol
They won't say anything they're not fog lights, your fogs are on a different switch