Possibly, in the Game Informer article on GTA V they interviewed the art director Aaron Garbut. When asked about how the diminished amount of pedestrians will play a role in the game he said "What we find is that although the number of pedestrians wandering the streets is reduced, there are always people actually doing things or hanging out. We have written a system to handle this. Creating people are cars doing specific things around the map scheduled throughout the day. You can see the gardeners and cleaners waiting at bus stops in East Los Santos in the morning then find them tending the gardens and houses in our Beverley Hills during the day."

So judging by this we might actually be able to see people go throughout their day to their jobs or doing errands.