I had to wait well over 3 days since my ticket was answer to even have the interview. If I was you I would read the handbook. They will ask you questions on it that you might have not even realized was on it.
I agree, the main problem is response time. Yesterday I had a situation where Kavala HQ got taken over and we were patrolling magic mushroom processing and had to drive from there to Kavala in intense fog (couldn't even see 10 feet in front of you). Since there were more than 6 officers online we couldn't respawn and by the time we got to Kavala the situation was over and the people left the HQ.