Futuristic travel hacks can be more trouble than they’re worth.

Just ask Meow-Ludo Disco Gamma Meow-Meow, 33, from Sydney. The self-described “biohacker” and “cyborg” pleaded guilty Friday morning in a local court for not having a valid card for the city’s public transportation system — because its chip was surgically implanted in his left hand, according to a report.

Last year, in hopes of scoring smoother commutes, Meow-Meow had a custom-made implant of the chip of an unregistered Opal card — Sydney’s equivalent of New York City’s MetroCard — placed inside his hand by an expert body-piercer in a one-hour procedure. All he’d have to do is tap the outside of his hand to a chip-reading machine to get in and out of stations.

“My goal is to have frictionless interaction with technology,” he said at the time, adding that he believed these inserts could be used in the future to ease processes like accessing government services or proving one’s identity.

But his plan ran afoul of the law in August, when he tapped himself onto a train with his hand and was fined by officers for not carrying a valid ticket, BuzzFeed reports.

He was ordered to pay a total of $1,200 Australian dollars in fines, or $932 in US dollars.

In court, Meow-Meow’s lawyer, Nicholas Broadbent, argued that his client had sufficient money on his card. But the prosecutor, Andrew Wozniak, maintained that a valid ticket can only be issued by the government, and that it must not be misused, altered or tampered with.

Meow-Meow was charged with traveling without a valid ticket, but there was no conviction for failing to produce a ticket for inspection.

“This was a case where the law hasn’t kept up with technology,” Meow-Meow said outside the courthouse.

And it seems like it will stay that way.

“Why would you put that in your arm, bro?” said one man walking past.