If he's driving Saturday he should be a 22.4. so he should be demanding his 5/8 guarantee. The issue is he's being laid off and still driving. Which I believe shouldn't be happening. If your being laid off it means they don't need you for the position you were hired for. So you bump into the building to get your hours.Unless there is local language that specifically prevents him from driving then his position shouldn’t change, if he works 15 hours all week but they ask him to drive on Saturday, will they add the lost time and pay to his timecard?