Yeah, they showed that to us in my police bike training class (IPMBA)...it is fake.
BTW, it so never works, although it does happen. And while bikes may be able to go where cars cannot, they can't out travel radios. A bike that tries to run from the police seldom wins.
NOW, I have chased vehicles down on my patrol bike, pulled them over (by flashing my flashlight (no police lights on my bike) and thumping on the trunk. I got a DWI that way. AWESOME. At briefing the next night Sgt. says, "well, Princess here (what they called me) got a DWI on the BIKE last night. You guys think you might be able to find a few from cars?"