foxmalcolm wroteColonYou're not missing much . . . he just acts like it was no big deal and gives you the cash with a handwritten message scrawled across the surface . . . took me many go's before I was able to complete it.
If memory serves, you can get a magazine article about the chase for the scrapbook as well (complete with pic of a woman being caught in a gust of wind as Cabbie passes, also used for the install screen) though I'm not sure exactly what triggers that to unlock. You might have to follow him perfectly, or maybe it's bugged and I only saw it using the reveal all cheat or something.
My main problem with that mission is the length, as you don't have any backup there is no margin for error and you have start the mission over if you make a single mistake.