The only boats around there are people-powered. River-rafting is a HUGE industry there, and you’re trying to kill off the livlihood of hundreds of people. 10s of thousands of people, if you include the whole Rio Grande border.
Cell phones DO NOT work there. Maybe satellite phones, but that’s it.
You’re not from around here, are you?
Not since I rowed across the Rio Grande to live here in 1997. I got thirsty waiting for my ride.