Hint
If you are peeking at the pressroom, you will find a paper and a knot. Give this knot to the mailman. ( Choose 'Cut and Crap' when speaking to Boyle. Buy a sexmag and give that to the helpsherrif. Now you can steal the jerrycan with fuel out of the sherrifs office. If he goes on his round, you can pick the key ( of the room where they keep the docs of proof ), out of the drawer of the desk. In that room you will find the can with fuel. Take this to the mailman. When you give this he will give you the subscription form.