Does Illinois
Really have these speed bumps with white marks ? California does. Could be a geographical error.
http://www.tengaged.com/?refer=capguy1
I saw the movie today. I didn't notice anything odd. What you call a speed bump might be a speed hump to me. A speed bump to me are the ones that are small and if you hit them without slowing you can F up your car.... or were they speed humps (taller and wider), the ones that allow you to drive 25 mph or so and just gently roll about your business?
They have them both in Illinois. Most are speed humps. They are prevalent in Chicago near schools, where children play and many residential side streets. In the suburbs many have them in their downtown shopping/dining districts, school zones and near parks.
Speed humps are in parking lots all over the state.
Heck I'm old though, I haven't seen a small speed bump in forever, so maybe what I call a speed hump is actually a speed bump to everyone else.
Have a good day!