I do not know if this happens with every checkpoint but whenever i pass through the police checkpoint 1 just outside of 'Sydney' it causes a crash no matter if they are raised or lowered. It happens both ways (towards and away) and i know it isn't just me because while i was driving away from 'Sydney' someone else in a ute had crashed into the opposite bar. This is the third time it has happened in the last month and it is starting to get annoying dying, then cops impounding my car and my stuff, before I can even get back to it forcing me to start all over every time.