If they are cloudy like mine were all i done was used a long thin screwdriver, taped some cloth to the end, removed the front grille with the spots attached, removed the bulbs and dusted the inside with the cloth on the end of the screwdriver, cleaned up a treat 
he means fogs not spots, for big bumper models

sounds like a plan but might just jack up the car and get under it 
you can remove the fog lamp unit from it's bracket but undoing 1 screw/bolt and sliding it out from the bracket. you should be able to do this from underneath the car
if not you can remove the lamp c/w bracket by removing the 2 bracket bolts which secure it to the inside of the bumper, but that would be difficult unless you take the bumper off