Suppose Perry worked in rail yard as an at-will employee. He and the other workers were looking forward to the annual holiday party. However, due to a sudden change in company policy, the workers were required to work late on the day of the party. In response, Perry called a meeting where the workers signed a petition requesting the rail yard to be closed early on the day of the party so that the workers could celebrate. A manager at the rail yard heard about the meeting and told Perry he would be fired if he continued trying to organize a rebellion in the workplace. Which of the following is Perrys most appropriate cause of action?