If constructive dialogue doesn't workClose the bridges into Michigan from Windsor and Sarnia for a week for "structural inspection". Do the tunnel at the same time while at it. Leave the Niagara crossing open so the border remains technically open but cut the number of truck lanes to one so it becomes a cluster, and don't answer the phone when gramps calls. Let the automakers, other industries and citizens tag-team on the psycho-governor until the idiot relents. Yes it will ruffle feathers, but sometimes a shyt show is required to get people's attention.