Implying you can spot the drone. Best police drone would simply tag the vehicle and see where it is moving around, then apprehend the fugitive one he settles for a longer period (during the night usually).
Yes, but how are they going to do that if they can't see the drone? How will they know when they have succeeded? Are they just going to continue driving recklessly until they run out of gas?
Driving evasively seems like a very good way to attract the attention of other officers who might not recognize the suspects' car. Once the cruiser is out of sight, the suspects' best bet would be to "act casual." If the drone can see the suspects then it doesn't matter how they drive, and if it can't see them then driving like a maniac only makes it easier to be found.