Some dude at Coachella stuffed 100 stolen phones in his backpack but forgot people can track those things.

Police arrested New York resident Reinaldo De Jesus Henao, 36, on Friday after several people couldn't find their phones and wisely activated the "Find My Phone" feature, which pointed them to a guy walking around with a backpack, according to the Indio Police Department.

While someone looking to steal cellphones can probably do so just about anywhere, Coachella seems a particularly easy place to get away with it. People take their phones out to snap photos of artists, and music plus the writhing mass of people at a concert makes it hard to tell when some thief has gotten a little too close.

Some festival-goers have since been reunited with their phones, and those who haven't have been directed to Coachella's lost and found.

Police took Henao to a correctional center where he was charged with grand theft and possession of stolen property, but he walked out after putting up the $10,000 required to bail him out, according to KMIR. Coachella revelers, keep an eye on your stuff.