Weird glitch. Wondering what happened.

[Da_Blue_Potato1]

So uh i was playing in online and decided to quick play the casino heist through the phone. Said looking for job in the corner and all of a sudden the entire HUD disappeared. Couldn't pull out any weapons or anything, but i noticed that when i jump, i can ragdoll in mid air (only a story mode feature). I also got hit through the front windshield while driving around, which also is a story mode only feature. Went to my apartment and i couldn't go in, but the garage door opened and i could drive in it. I could walk through some other doors aswell. I killed myself and it didn't show a death screen, it faded to black and onto an infinite loading screen. 

I'm just wondering how this occurred and what happened. Might be useful for some other glitches if anyone can find a consistent way to do it.