You may also wish to petition the Mexican folk saint, Santa Muerte. http://luckymojo.com/santisimamuerte.html
. Although this link focuses on Santa Muerte's abilities to protect a marriage from wandering, she has also been used to cross the border between Mexico and US. Here is a prayer that has been used by millions of Mexican immigrants to aid in their immigration to the US. It may work for you as well. Best of luck!
Most Holy Spirit of Death, I invoke your holy name to ask that you help me in this endeavor. Lead me over mountains, valleys, and paths. Don’t stop showering me with your good fortune. Make sure that my destination is freed of all evil purposes. Santa Muerte, through your powerful protection, prevent problems from materializing and weighing heavily on my heart. My lady, prevent sickness from touching me and keep away tragedy, pain, and want. I light this candle so that the gleam of your eyes forms an invisible shield around me. Grant me prudence, patience, and, Holy Queen of Darkness, grant me strength, power, and wisdom. Tell the elements not to unleash their fury wherever I go. Make sure I have a happy return trip, because I’m ready to adorn and decorate your home at my holy altar.