Who needs always the police or a yawning driver?
But money - that's something we all need!

Here's how I did it.
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1.Open the "My Documents\18WoS Haulin" Folder and make safety copy from the 
  "config.cfg" file into a new folder (you name one).

2.Then open the original file with the "Notepad" (my favorite editor). You'll
  find the "Notepad"-file on Local Disk(C:)\Windows. I have a shortcut on my 
  Task-bar, because it almost opens every file. Just click and hold the 
  "config.cfg" file and  pull it over the notepad-icon, then release the mouse
  button.

3.In the "config"-file look for [uset g_police "1"] and change it to 
  [uset g_police "0"]. Now - the police car is gone, no more fines and very 
  important, no cars on the emergency lane (later more why).

4.Now look for [uset g_fatigue "1"] and change it to [uset g_fatigue "0"]. 
  You got now the perfect driver, he can stay up for days or weeks and keeps
  driving. No more yawning, which by the way made me sleepy too (crashed lots
  of trucks).

5.Click save and close the file. Start a game, shortly after starting the game
  save, close and exit the game.

6.Now go to "My Documents\save" and open the folder #1. If you already saved 
  some games, than go to the last and highest number and open the folder. 

7.Hoover the cursor over the "game.sii" file and make sure that the 
  "date modified xx/xx/xxxx" is the date you saved the last game. Than open the
  file the same way like the first file (with Notepad).

8.Now scroll down, pass "companies", "vehicle pounds", "stored_XXX" and 
  "police_offences_meter". You'll find money_account:XXXXXXX.
  Change the XXXXX amount to the amount you need or want.

9.Click save and close the file again.

Now you're ready to load and play your game. Here some other tips:
* It's sometimes hard to stay in the lane without hitting the cars and trucks 
  which pass you, if you use the keyboard to steer.
* Turn on your flashers (F) and nobody will pass you again. It's helpful too 
  if you drive thru a city. If the highway is to full pass everybody on the 
  emergency lane (no cop car there any more), as soon as you pass a vehicle 
  it will slow down and fall back.