A 20-year-old man in Vancouver, Wash., was charged with theft of services for allegedly sitting in a coffee shop parking lot and using its wireless Internet service for months, according to a report.

The manager of the Brewed Awakenings coffee shop, Emily Pranger, said she noticed a man would come and sit in the business's parking lot for at least three months. She said for hours at a time, he would piggyback on the stores wireless service for free.

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Sheriff's deputies told the man to go away at one point but apparently he returned.

The man, identified by KATU-TV as Alexander Eric Smith of Battle Ground, was charged with theft of services.

"It's a repetitive occurrence, and it's borderline creepy." Pranger said. "If he doesn't buy anything, it's not right for him to come and use (the service)."

After an investigation, police discovered that Smith was a level one sex offender.

The sheriff's office is reviewing the case.

Watch Local 6 News for more on this story.