A Houston man said he was forced to take matters into his own hands Saturday after spotting a person driving erratically in the River Oaks neighborhood.

Alejandro Fernandez Favreau said he was showing his visiting family around the city when he spotted a car that had been involved in a crash and whose driver was swerving, according to a post on his Facebook page.

Favreau said he began following the vehicle, and the driver stopped at a restaurant. He said he called the police, but as he was leaving, he noticed the driver get back in his car to leave, too.

Favreau said he decided to follow the car again, which is when his brother-in-law started recording video of the incident.

The video, which was posted to several social media sites, showed the driver of a white Ford Mustang with significant front-end damage swerving all over the road, running red lights and making dangerous turns. At one point, it appears as if the driver was losing control of the vehicle.