Yes! Travelers Beware!
You can't make stuff like this up.
Within the standard approach to Los Angeles International Airport, two airline pilots reported seeing someone in a jet pack flying at about 3,000 feet (almost 1,000 M). The pilots reporting were pilots for American Airlines and Jet Blue. One of the things that the control tower was quoted as saying, "Only in LA."
This rans up there in stupidity with the guy in the folding aluminum / webbing beach chair that floated aloft while being lifted with a series of Helium filled balloons. (Lawn Chair Larry, July 2, 1982)