I found about this for 20 and 18 years ago on GTA Vice City Wanted Levels

1 When you are on a boat the Predator will chase you but when you get off the wheel the boat police wont act 2 When you are in a car on water SEAWAYS cheat the boat police wont chase you. 3 When you are on a helicopter the boat police will chase you i found out about that for 20 years ago 4 When you are on a Dodo plane the police boat would also chase you