Don't you mean "Speed Bump Ahead"?

Every morning when I arrive at work I pass the sign that is pictured below. I never paid too much attention to the wording until the other day I realized it read "hump" instead of "bump". I'm pretty sure in Ohio they're called speed bumps so I've always read the sign as just that. Now every morning as I approach the parking lot I read the sign as more of a command: "Speed hump ahead". Cracks me up every time. Oh Indianapolis.