I happened to be in New York City that day, but my constituents tracked me down and found me. They called a number of their MPs. Luckily my colleague, Mr. Holland, was actually speeding on his way to the border--legally--to go to a meeting in Washington. They had no phone numbers to call to exercise a complaint. There was no complaint process, except to call their members of Parliament. As Mr. Holland arrived, the last bus was finally let go, because they announced to them that their MP was coming.
Would it be normal for citizens to have to call their MP to get across the border, when they all had legal papers?