Firstly, it doesn't even make sense. KFC isn't a chicken, it's a chicken shop. How can you 'find a bigger chicken' than KFC, a SHOP that sells normal sized chicken? They haven't purchased the rights to use the pre-photoshopped image (according to the photographer commenting on the tweet), and surely KFC are within their rights to sue?
They've actually sent boxes of chicken to journalists. When the country is in absolute turmoil. Who in their right mind would sign this off?