A motorist ended up behind bars Friday, after he allegedly crashed into another driver then tried to swipe that driver's cell phone.

It all began at 1:13 Friday afternoon, according to the San Francsico Police Department. Two drivers collided on the first block of O'Farrell, which is between Grant Avenue and Stockton Street. One of the drivers, a 23-year-old man, tried to "flee the scene," police say, as the other driver, a 55-year-old man, started taking cell phone photographs in a presumed effort to later identify the errant motorist.

The younger man wasn't having it, police say, and grabbed the older man's cell phone. That's when police arrived, making the effort to hide his visage moot.

When they were apprised of the situation, police say that they placed the alleged cell phone grabber into custody.

According to SFPD spokesperson Officer Carlos Manfredi, "the most important thing a driver can do" following a crash is "remain on the scene...by failing to do that, you turn a collision into a hit-and-run." It's unclear why this driver allegedly attempted to flee, and further details on the crash were unavailable as of publication time. Police do confirm, however, that neither man was injured in the collision.

Related: SFPD Seeking Town Car Driver In Haight Street Hit-And-Run