The easiest solution I devised for fixing that traffic bug specifically was by moving the trigger area away from that side of the roadway so it only covered the left side (Left side being the oriented so that your camera is facing the front of the white Toyota Camry). It's pretty simple to do if you know your way around the editor. Feel free to send me a PM if you'd like some guidance in fixing it until the real patch is released. And yes, you can edit the calls you get very easily. Open the mod's folder (C Drive/Program Files x86/Sixteen Tons Entertainment/Emergency 4/Mods/Montana Mod 2.0 Beta) then open the "specs" folder. You should find an XML file titled "endless_freeplay_perams" or something to that effect. Open it with Notepad or Notepad++ (Better, in my opinion), and then you'll be able to edit the call frequencies, starting time in the game, points you get for completing calls and most importantly you'll be bale to disable certain calls by changing the boolean at the top of every call statement to "0" instead of "1", disabling the call. Full tutorial here.