Wendy's customers couldn't help but laugh at a sign installed by the fast food chain that appeared to poke fun at a neighboring McDonald's use of frozen hamburgers.

The sign off exit 9 lists Margarita’s Mexican Restaurant, Pizza Hut, Applebee’s, UNO’s Chicago Grill, Wendy’s and McDonald’s ... to “bump” McDonald’s off of the food sign.

Notice that Wendy’s doesn’t talk about its food on this sign (the company leaves that to its Twitter account), but rather how customers should feel when they are eating the food. Subway: “We ...