How do you file a complaint against an airport not airline employee?

I think you should start by contacting the City of Charlotte. If that does not work try these important names. ​​​​Aviation Leadership Team  Charlotte Douglas International Airport is managed by a well-rounded, experienced team of industry professionals, including: ​Brent Cagle, Aviation Director Jack Christine, Chief Operating Officer​ Haley Gentry, Chief Business and Innovation Officer Mike Hill, Chief Financial Officer Leila Lahbabi​, Lead ​Counsel

Call the airport