Was she free to do what she did? Absolutely. Was her company free to fire her for it? You bet.
https://www.google.com/amp/www.newsweek.com/woman-fired-flipping-trumps-motorcade-702582?amp=1
https://www.google.com/amp/www.newsweek.com/woman-fired-flipping-trumps-motorcade-702582?amp=1