Threaten a negative survey, file a complaint with your state attorney general, ask your DMV to step in, have a lawyer send a letter, etc. Multiple escalation routes that you could take.

What everyone is missing is that Hyundai uses AAA for it’s roadside assistance lol. See the footnotes at the bottom of the page here https://www.hyundaiusa.com/us/en/assurance/roadside-assistance

“Hyundai Roadside Assistance services are provided through the American Automobile Association, Inc., Heathrow, FL, and its affiliated motor clubs, which are independent contractors of Hyundai Motor America.”