The limousine driver is the natural enemy of the valet parking attendant.
They want self-drivers whose cars need valet parking. (We obviously negate that.)
They want self-drivers to provide them tips. (Ditto.)
They want self-drivers who don’t block their driveways. (Limos are always hanging around constipating things.)
They want lady self-drivers so they can check out the view as they alight their car. (Most of us are blokes.)
In summary, limousines are an impediment to the valet-dude’s perfect world filled with gigunda-tipping hotties in short skirts driving Lamborghini Gallardos. (Fair enough. Sorry guys, I’m just doing my job.)