Day 5: Wednesday, Catemaco
Today we will visit the outdoor La Venta Museum, a place that houses large engraved stone monuments dating to the Jaredite time period. We will visit the Villahermosa Temple and then bus along Mexico’s “golden lane” passing by both the “place where the sea divides the land” (Gulf of Mexico), and the “narrow neck of land” (Isthmus of Tehuantepec). (See Ether 10:20.) Prior to our arrival at beautiful Lake Catemaco where we will spend the night, we will pass by the hill Shim (Cintepec) where Mormon obtained the records for his history (See Mormon 1:3, 17). (Breakfast, Dinner)

http://www.bookofmormontours.com/zarahe ... or_29.html

Can't Truth in Advertising laws be use to nail liars like this?

The serious answer is no, because of something called the Entanglement Doctrine. Extremely briefly summarized, what this means is that the establishment (of religion) and free exercise (of religion) clauses of the First Amendment prohibit courts from interpreting church doctrines.

In other words, if you were going to sue these people or prosecute them, it would have to be in court, obviously. To find that there was fraud, a judge or a jury would essentially have to make a finding of fact (that means that they decide, based on the evidence, that something has been proven) that the Book of Mormon is not true. A court can't decide religious questions.