He saw something, so he Tweeted something.
An alert straphanger captured an image of a police officer snoozing on the F train, his gun holstered on his hip.
Martin Bisi forwarded the picture to the NYPD, which issued 43-year-old officer Matthew Sobo a “command discipline” for falling asleep on the subway with his weapon by his side, according to The New York Post.
"NYC cop sleeping on F train last Thurs w/weapon - i reported/his vacation docked. If you see something, say something" Bisi tweeted.
Sources told the paper Sobo was off-duty at the time the picture was snapped last Thursday, but the decorated officer was en route to do some paid security job approved by the NYPD.
Sobo is a 20-year NYPD veteran who has received multiple awards for bravery, according to the Post.
