I'd also like to learn more about the Consumer Bill of Rights. If I submit a request.
the repair shop must give you a written estimate of the parts and labor necessary for each specific repair . The shop may charge a reasonable fee for developing a written estimate , but the labor charge for an estimate may not exceed the shop 's usual hourly labor charge . The estimate must list each part and its cost , and show what parts , if any , are either used or not of original quality
If in the audience it determines that there were violations?
DMV will take action against the shop .  This may include suspending or revoking the shop 's registration and/or imposing fines . If you suffer a financial loss due to overcharging or unnecessary or poor quality repairs , the administrative law judge presiding at the hearing may offer the shop the option of paying restitution . The shop may then receive a shorter suspension period and/or a lower fine . DMV can not force a shop to pay restitution .