It’s not just Teslas zooming through Elon Musk’s tunnels under the Las Vegas Convention Center, chauffeuring passengers as part of a public transit experiment that started in 2021.
A skateboarder got into a tunnel through one of the established passenger pick-up stations, forcing staff to briefly tell drivers to stand by while they ejected the interloper.
Someone else got in through another station when the transit system wasn’t running, and started taking photos underground until security arrived.
Then, there are the unauthorized cars that have repeatedly tailgated the Teslas into the tunnel stations, sometimes getting in before the automated security gates have a chance to close behind.
Trespassing in the tunnel system has become a headache for the Boring Company, which built and operates the 2.4-mile subterranean road network known as the Loop. People break the rules by going where they’re not supposed to, forcing the company or convention center to intervene and escort them out.
There have been at least 67 trespassing episodes since 2022. And since the beginning of last year, 22 vehicles have followed the Teslas into the stations or tunnels, according to reports from the Boring Company that Fortune obtained via a Freedom of Information Act Request with the Las Vegas Convention and Visitors Authority.