I'm a logical person, so I understand the rules of an HOA, but not allowing an owner to work on his vehicle on the driveway for a day seems a bit too strict for me. Yet there isn't anything I can do about it...... It is what it is.
I'm going to take Alvin's advice & give this fella a call to ask what his shop rate is. It's the smart thing to do. Will let everyone know what he says.