Case: Sammy is a truck driver for a well-known national trucking/hauling company. Once, while on a delivery trip across the country, he encountered a closed road which caused long delays. Sammy tried many times (unsuccessfully) to reach his employer's on-call dispatcher to notify the customer of the delivery delay. Once Sammy returned from the delivery trip, he discovered that the company's dispatch unit had an incomplete phone set-up. Sammy posts a rant on his personal social media page, where he complained about the employer's inability to handle basic technology installations.

1. Should the employer take action against Sammy for his social media post?
2. Would the employer have grounds to terminate Sammy?
3. Would Sammy have an argument against any disciplinary action taken against him?