But really, when all of the criminals know what to do to get the chases aborted, it becomes a moot point IMO.
Just think about the sort of road rules that you'd never break, the sort that endangers not only your safety, but the lives of others (No, not speeding, drag racing, burnouts, etc). One of them has already been mentioned, if the Police cant see you on the road at night, they consider it to be a safty hazard, and call the pursuit off. You hear about it on the news sometimes when the police keep chasing someone, then the someone ends up killing an innocent party. The police are then considered to be partly at fault..