Taking a little creative license with this one. These are inspired by the circa 1989-90 NYPD patrol cars. I couldn’t think of what Americans might call a labor (aside from ‘giant police robot’ or something), so I stuck with the Japanese name; it might plausibly be a loanword, though it’s actually an English loanword / portmanteau. It’s come full circle!
The text says: “Special Vehicles, Patlabor Squad, Officer Exchange Program.”