This does not sound like a legal question. You may want to contact the American Automobile Association for more information. See the link
DISCLAIMER: This information is intended for public and educational use only, it does not form an attorney-client relationship and it is not intended as legal advice. Nothing replaces a confidential consultation with an attorney. This communication may be considered attorney advertising. Do not post any privileged information, instead contact an attorney directly.
"International Drivers' Licenses" have always just been translations of your existing driver's license with no real addition to the value of your existing one. Police who want to stop you, will stop you anyway. The advantage is if you are not fluent in the language of the country where you are driving.