blockade. with canadian police slowly moving in, anti-vaccine mandate protesters started clearing out saturday, blasting their horns on the way. angry stragglers stayed behind, onfronting police.tayed behind, >> who are you protecting? >> we're just as passionate about our bill of rights and-- in this country as you are about yours. >> reporter: the law enforcement action follows a court order for protesters to move away from the ambassador bridge. the key border crossing carries 10,000 a day between the u.s. and canada, transporting about 325 million dollars' worth of goods. the now six-day blockade has disrupted auto plants in canada and several states. analysts estimate it's cost car makers 700 million and counting. >> so, they have not caused mass outages just yet. but i think we're on the brink of them having that effect. >> reporter: this is the third weekend of protests that began with a cross-country trucker convoy rolling into canada's