[icebraining]

which it won't be

All of History says otherwise. All surveillance mechanisms have been used to individually track dissidents, personal enemies, ex-spouses, etc. What makes this different?

If the police eventually develops a very dense sensor network that can track every car's movement across every intersection then there would be too much information recorded for me to personally worry about it

The availability of large databases (ex. DNA) have been shown to increase the number of innocent people caught in the net, since the probability of false positives increases proportionally and cops start relying on running wide searches over regular investigation techniques.

it would reduce the need for inherently-dangerous hot pursuits to follow a vehicle as the cameras would do that anyway

Only if you have a complete panopticon, with no gaps, which in a wide enough are will be difficult, if not impossible.