During a pursuit evade cops enough that they are about to lose you at level 3 or higher, then go through coliseum to construction area where the pursuit breaker is.
Just before you jump off onto highway stop there will most likely be a road block.
Sit there and they will just keep ramming into the wall below you, building your bounty and allowing your time to run up.
When you get what you need turn around and there is a hiding spot right behind you.