Yup you can do it with the car on the ground no problem. Turn the steering wheel to get access to the rivits, and you can reach the 14mm bolts from the front of the car with a 6" extension to clear the bottom of the bumper.
This is the drivers side bolt, just by the tow hook. You don't have to remove the foglights, just remember to unplug the harness before removing the bumper.