Anyone try the ML to Niagara Falls, NY, disembark, cross the border by foot, then reboard at Niagara Falls Ontario ? I noticed the nearby Whirlpool bridge is used ony for pre-screened Nexus users and not available for general foot traffic. Just curious as Amtrak does not allow the AAA discount when taking the ML all the way to Toronto. But the price falls if going to NFL only.