Good evening Jesse and welcome to the Events Calendar Support forum!
Thank you for reaching out to us.
I would love to help you with this topic.
Just to set expectations, as you might know, the scope of our support is mostly to get our wonderful customers started on the right track to customize their site and to help them in case of issues. We unfortunately do not provide complete support for customization.
Simply put, you will need to use a filter on the returned results to get the full name to display.
I would recommend reading the following to get some sense of how this is done: https://wp-types.com/forums/topic/convert-state-abbreviations-to-full-state-name-in-a-shortcode-from-url-parameter/
Let me know how that goes.
Best regards,
Geoff B.