Why would a car repair shop need a website for? All I care about is the phone number, with the hope that someone will pick it up. IDK about the world, but in Poland every single mechanic I know has no downtime at all. The better ones have queues measured in weeks or months for simple repairs. They don't care about extra business, the business will find them anyway.
That generates more supply (mechanics) not less demand (volume of broken cars). Sometimes having excess demand is ideal to keep the market balanced in your favor.