I don't get how it was her plan, the whole thing was Andrew's idea. He needed to be in Mexico City to meet her on arrival, then the two of them travel to the resort together. Getting detained can be a scary thing. You don't know what the authorities are going to do. You have few if any rights. People have been detained for months and years in countries, essentially prisoners, because of the regional bureaucracy. I get that a lot of people on these shows are in it for the money and publicity, but I don't think anyone is going to deliberately get themselves locked up, unless they are completely stupid.