I believe after a year or so of playing the truth is the algorithm used to generate missions either hates you or loves you. That said there are a couple of missions that hate you no matter what. Illegal internet activity or gun sales will always be 30 minutes from the closest Federal office. The call for a fire marshal will also be at least 30 minutes away. This is either a curse on me because I have so many stations spread across so many counties, or there is an evil genius behind this.
Enjoy the rest of your day. I will be sitting here staring at the screen waiting for my fire marshal's and FBI to arrive at their calls.