Ok, so, yeah, I was messing around for a bit in SP before shutting down, and as I climbed on top of a building around Legion Square I heard all these explosions and loud screams and it hit me that this is SP and not Online and loud bangs aren't supposed to go off like that.
NPC's were obviously screaming on top of their lungs from being scared sh*tless, and once I got to a good vantage point I looked down, and behold:
That poor pedestrian seems to sum up the complete confusion - this is seconds before cars started getting stuck halfway through the wheel, bouncing around inside it and making up for huge explosions...
Luckily, some firefighters were brave enough to run straight into this mess, but I think it ended quite badly for them.
It was the strangest thing... The peds were seriously scared sh*tless by the sound of it. Come to think of it, who wouldn't be?
Has this happened to anyone else?