Probably about the same time that a shop rejected a bike for an excessively loud exhaust. I'm pretty sure that if the pads seem visually OK, you're not spraying hydraulic fluid on the sidewalk and you didn't turn all the bikes waiting in the service bay into dominoes when you rolled in, that's good enough evidence that your brakes will pass a road test. I generally agree with your value assessment but it's not a total waste either. The shops are gonna clear $5 per sticker and I've never had a guy spend more than ten minutes on the inspection, paperwork and sticker replacement. That's at least $30/hour not including the occasional tips from nice people like you and me. Not exactly shop rate for wrench work, I know, but it's not totally peanuts either. The good news is it gets people into the shop, builds loyalty and even without yanking people's chains, brings the shop opportunities for higher-value work and sales that they might have otherwise lost. There are many costs to running a business and this is one of them. If a business owner finds that offensive then he or she should find a different line of work, or open a shop in a state that doesn't require mandatory inspections. .