That’s one way to get people to slow down.

A photo on Facebook appears to show a deli revealing that a cop car is hiding behind the store’s sign to catch speeders. It turns out, however, the message was actually on the sign before the police ever showed up.

The Bridgeville Police Department in Pennsylvania posted a picture to its Facebook page that shows one of its cars sitting behind the sign for a local deli. While the car would normally be well hidden behind the sign, the messaging seems to give away the cop’s presence.

"Slow down," it reads. "The cop hides behind this sign." It also mentions that there will be a fish fry on Friday.

BARTENDER GOES VIRAL FOR GIVING NOTE TO RESCUE WOMEN FROM MAN HARASSING THEM

The police department captioned the post, "Well… I guess the jokes on us! SMH. Good one, PJ’s Deli!"

It turns out, however, that the sign wasn’t put up to give away the hiding cop car. According to the deli’s owner, the sign was put there to prevent dangerous driving and the police had never used it to hide their cars.

"It was put up as a joke, and they came and parked a cruiser behind the sign and took their own picture," Pam Wheat, owner of PJ’s Deli, told Fox 5.

FOLLOW US ON FACEBOOK FOR MORE FOX LIFESTYLE NEWS

Wheat continued, "We see accidents almost daily on our corner because it’s a bad intersection, but they do not use my property to hide so you can let that secret out of the bag."

According to the news outlet, the deli has a good relationship with the local police department. When officers found out about the sign, they thought it was funny and wanted to be part of the joke.

CLICK HERE TO GET THE FOX NEWS APP

Bridgeville Police Chief Chad King told Fox 5, "I thought this was great because it shows we can laugh at ourselves."