There is a glitch for the "Gripped!" mission on PS3.
If you get a Taxi, hold R3 (the button you use to the start the Taxi missions), get out of the Taxi, and go to the Patriot and get in, after the transition screen, release R3. The sound disappears and you get a freeze-frame effect for a second, then the screen goes black.
The only way to get out is to press the power button on the PS3 to get back to the XMB menu.
Hope you found this glitch out!