Yeah, but that's for multicolor rapid installs, where you don't have time to let paint dry. Granted a warehouse with automated forklifts sounds like an expensive operation to shut down while paint dries...
I say make a stencil and use some oil based paint, then give them a rate to redo every 6 months. Retain the stencils, and just pop in there twice a year to refresh the stencils.
That or get with a concrete finisher to see about whatever process they use to etch polished concrete. Not sure if color is an option, but that is part of the concrete, and not likely to go anywhere with traffic.