While ideally you should have put the chicken in the fridge before Shabbos, you were permitted to do what you did.
Generally it is true that inedible foods are muktza, and this should include raw meat. However, Shulchan Aruch rules that raw meat is not muktza, as some chew it raw. Mishna Berura discuses whether this only applies to soft poultry or even to red meat, but clearly accepts that fowl is not muktza. However, HaRav Shlomo Zalman Auerbach zatzal, quoted in Shmiras Shabbos k'Hilchaso, states that today no one eats any raw meat including poultry, and it is all muktza. Despite this, in a case where significant financial loss is at risk, even Rav Auerbach is lenient.