"But that's just a speed bump!" you say. Hah! "Just" a speed bump?! They are called "spring breakers" for a reason. The Peruvians take perverse pleasure in building them tall and steep.
They are usually heralded by a sign like this:
Or this. Actually, I'm not sure whether this was to warn of an upcoming bump, or whether it is the name of a town. Maybe that's where the factory is located. I dunno.
I say "usually" they are heralded by such a sign, but at times there is no warning, and no painted stripes. Instead, I think I've seen a bunch of Peruvian rompemuelle makers sitting in the bushes giggling, waiting for the unsuspecting motorist to have his springs not only broken, but torn clean out of his undercarriage.
We hope that your muelles don't get rompe'd! Or at least that you win the bet.
Dave & Paula