A teenager who became famous after he was arrested near Orlando and charged with impersonating a physician's assistant at a hospital there has been arrested in South Florida after being accused of impersonating a police officer.

Matthew Scheidt, 18, was arrested on Miami Beach early Thursday morning and booked into the Miami-Dade County Jail.

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Miami Beach police said an undercover Miami Beach police officer saw a white Ford Crown Victoria that looked like an unmarked police car pull up beside him. Police said the man driving the car was acting like a police officer does, using a laptop, using police jargon and telling the Miami Beach police officer to fasten his seat belt.

The undercover officer did not recognize the driver of the vehicle as a Miami Beach police officer, so he called for backup and pulled him over.

Police said officers found a .380-caliber Ruger under the seat, a Taser X-26, a set of handcuffs, a radio, an Osceola County police badge, police T-shirts and an empty ankle holster.

Scheidt faces charges of impersonating a police officer, carrying a concealed firearm and carrying a concealed weapon.

A judge set bond for Scheidt at $11,000.

Scheidt is still awaiting trial on the charges in Central Florida, where he was accused of impersonating a physician's assistant.