A friend that is blind is flying from POP to Miami in the not to distant future. Will the airport allow a friend to help him thru bag check area to customs area where he will pay his visa overstay fee? He will not be checking any bags. He will need help paying with his credit card or cash or pesos and he doesn't want to get ripped off! Also will there then be help to get him to the gate and on the plane? Thanks!!!