There is a great deal of evidence that the Maya used tobacco. Mayan hieroglyphics referring to tobacco have been translated. Deities, kings and shamans are often depicted smoking in Mayan art and iconography. The God L is depicted smoking a cigar on a wall relief in the Mayan city of Palenque, Mexico. A monkey deity smokes a cigarette on a vase from the late Classic period (200-800 A.D.). The Madrid Codex (pdf), one of the few Mayan historical records to survive the Christianizing zeal of the Spanish conquistadors, has multiple images of people smoking...
I wouldn’t worry about it. They’re already dead.