There's an article on the main site about hiring a driver here, and plenty advertising in the Seeking/Offering section - you can have a scan through the board and use the Search box to see if there's someone near you (obviously some will be a better bet than others but I seem to remember at least one in your area from not too long ago).

I wouldn't add anything to ads about not having a driver - at worst it could lead you to be targeted by people up to no good (as they will know you are alone, which is another reason a security call is so important) and besides that it isn't relevant; if I call an electrician or a plumber out I don't care whether he gets to me on magic carpet as long as he's on time. What you do before and after you get to the booking is no business of your clients, and I would give as little information away as possible for now, at least.