> If you are eluding the cops at 100mph you are a danger to the public, they are not going to let you go home.

They would not even try to reach those speed if they weren't chased. A criminal who thinks he escaped the police will try to not attract attention. They would just follow the normal flow of the traffic and you can follow their path thanks to the millions of cameras and the helicopter mentionned earlier. We are not in the 70's anymore.

You can follow them from a distance they can't spot you so you can lock the road if they turn back and dispatch police force form in various exit points of an highway without starting an high speed chase.

High speed chase is about cops endangering the public for the thrill and adrenaline really. They do that because they like it, not because they need it to arrest criminals.