In my experience, even stop sticks take a while to deflate tires and "stop" cars (except cop cars
which get stop-sticked more frequently than the BGs, in my experience).
Personally, I think a policy of "If you run, the air unit will respond and shoot your car to pieces with the door-mounted belt-fed machinegun as soon as traffic thins" would be a welcome change from the increasing amount of "no pursuit" policies floating around, and I loudly proclaim that this is probably a defensible policy, if one were to write it up well enough (fleeing is a felony, and one that places every other motorist in the way, as well as pursuing officers, in imminent danger of serious bodily injury or death. Those who flee should be well aware of that, and any high-speed, reckless manuevering on the part of the fleeing motorist should be rightfully stopped, immediately, through the use of any reasonable means, to include deadly force).
That all being said, any time I hear sirens in the background on the radio, my pulse rises and blood pressure spkies; our policy is strict, and if I don't hear the exact right things from the troops, with good justifications, road conditions and everything else "by-the-book," that sucker will be shut down very quickly. I can't afford any days off or a demotion. Sorry, guys.