Would the courts laugh at it? I believe it is up to the states to decide how they want to choose their electors, and it is just tradition that dictates they go to the popular vote. In fact, this is the way the National Popular Vote Interstate Compact is designed to get rid of the electoral college.
I would bet they WANT to courts to come in and decide that a state MUST deliver their delegates to the popular vote so that the NPVIC is dead in the water.