The actual reason:

A Transportation Security Administration officer at the Tallahassee airport overheard her speaking Spanish and asked whether Ms. Garcia, who was born in Miami, was an American citizen. She worried for the first time that Immigration and Customs Enforcement agents might stop her son, a young adult, because he looks Hispanic. Constituents have asked her for help finding immigrant relatives arrested by ICE.

She realized she and her family won’t get a special pass