Michael Komoto, 59, was arrested after using the app Grindr to engage in sexual acts with a minor, police said.
An investigation uncovered Komoto saying he was 39 years old. He picked the teenager up near his home on April 14, promising a shopping spree in exchange for "making out."
Detectives say Komoto sexually assaulted the teen at a storefront, which doubles as the suspect's business and home.
The two went to a nearby shopping center to buy makeup at Sephora, where police say the teen got scared, called a friend to pick him up and went to police.
Komoto was booked for engaging in sex acts with a minor and posted bail the same night of his arrest on April 18.
Investigators are now urging any other victims to come forward.