True, I didn't pay much attention to the story. However, the part I did pay attention to (the end), is my main storyline critique. Why does Franklin have to shoot Michael or Trevor (I took the third option, but...). A much more fun option would have been to be Trevor and shoot Michael or vise versa, with the third option remaining the same. Then it would have made sense that T and M are friends afterward, since they chose not to kill each other, or that there is no bad blood, because one is dead.
Given the fact that all you talk about in regards to GTA V is the police, not being able to shoot someone specific, mechanics, etc, makes me think that you had no time to care about the story, therefore you can't have a well formed opinion on something you barely paid attention to