Don't let it happen to you!
A locksmith was recently ordered to provide written estimates BEFORE he did any work by an Anapolis judge. He was using tactics like refusing to give customers' car keys back until they signed the receipt, and charging their credit card BEFORE they knew how much he was charge. And how much was he charging? Sometimes $720 for a simple car lockout.
DO NOT TRUST ANY LOCKSMITH. Make sure they provide you with a written estimate BEFORE you let them touch your property.
And make sure they are a licensed business in Hawaii, because you will have almost NO recourse against them if they scam you. Ask for the legal business name, a business card, and make sure the company name on the invoice matches all of the above!
What's the best way to get scammed? Do you research---and please, please, please find a decent locksmith and program the number into your phone BEFORE you need one!