She also posted the review on several websites.
Two weeks later, she received a notice of intent letter from a New York City attorney.
"A person in Colorado is guilty of the crime of extortion, a class 4 felony, or blackmail when that person threatens another, or his or her property or reputation," part of the two-page letter read, KMGH reported.
The letter is from an attorney who is not licensed in Colorado or New York but is licensed in Nevada. The address it was sent from is a nondescript two-story house in East Meadow, New York.
Griswold said she never heard from the company again but did eventually get a refund from a third party that processed her ticket for the tour.