OK I did take an boat from the docks in San Fiero, did use the "Pizzadox +27" trainer for the use of "Infinite Health". For three hours I was on the boat cruising before I blow it up with me in it, when I came out from the hospital I did notice that one more "Ballas" territory was unlocked down in "Ocean Docks".
1# But only one for three hours?
2# If I do the same thing to night when I sleep, will it unlock more then or just one at a time?
3# Is it better to do this in a certain location, or is it OK to start from any location?
The fun part is that the Ballas guys don't like me being there, they did attack me as soon they did see me