Denise Hickman, a Mencap caseworker at the charity's Smile! Stop Hate Crime project in Nottingham, has told ITV News that the Paralympics were great as "it brought into the public consciousness that there are people with disabilities who do fantastic things".
But she added: "On the ground, we haven't heard that it's made any difference".
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The video, obtained by ITV News, shows scores of migrants desperately trying to board lorries in a restricted area within the tunnel.
Ex-Spitfire pilot Allan Scott, 94, said he was told off by the Queen when he first met her in 1943 when she was just 16.
Last minute preparations are going on at the Church of St Mary Magdalene where Princess Charlotte will be christened.