expired canadian pp existing US via land
Hello. Plz need info. I am canadian citizen. Came to us in march n was going to leave on 14 april but i was denied to board as my pp has expried on 4 april 17. I didnt know until airline agent told me. I have two children with me, I am planning to go via land in private motor coming weekend. Have to cross broader throuh Nigara falls. Will i be able to leave us with expired pp. I dont want to stay here to renew my pp. Is there us border check?