My mechanic says he can not service my car because the nut to open the hood latch has a copyrighted shape and the owner of the copyright on that shape advised m

My mechanic says he can not service my car because the nut to open the hood latch has a copyrighted shape and the owner of the copyright on that shape advised me not to use my adjustable wrench or he would sue, but I could rent his crescent wrench each time I want to service may car, or I could keep the creascent wrench at home and the installed counter on the wrench would talk to his billing software and he would send an invoice every month... In 3 words or less, compare and contrast this to the Google-Oracle copyright fiasco...