Applied at Paychex for Unknown

I had an interview with Paychex earlier this month for a role that I was really excited about. However, during the interview, the interviewer asked me my age, claiming that I looked too young to have the qualifications I presented. This struck me as inappropriate, and the conversation quickly shifted to her personal life, which felt unprofessional. I realized at that moment that I wouldn't want to work there, regardless of the outcome. Now I'm left wondering if I should report this incident, as I believe asking about age in a job interview is illegal in the US. I’m unsure how to proceed and if it’s worth the effort, especially since I’ve heard mixed opinions on whether it’s illegal depending on the state.