I'm more of a "generalist" when t comes to camping advice in Latin America. I've camped in Mexico (Yucatan & Chiapas), Belize, Guatemala, Honduras, Nicaragua, Costa Rica and Panama. Generally, I've camp in remoter locations (when not in a "paid" locale), and always get permission from the land owner. I've found that the remoter the camping location, the fewer hassles I get.
Here's a camping spot fave of mine (on the Mosquito Coast of Honduras):
Anyhow, enjoy your camping experience in Latin America. I had for nearly a decade.
Silver-