Just finished the RobCo part of the "Wasteland Survival Guide" quest, and needed to report back to Moira. Fast-traveled to town and went inside. Couldn't move at all. Yes, I'm using a multiple-followers mod, but they were standing far enough away that they weren't what was blocking me.
I had this problem happen to me once before in vanilla New Vegas, so I opened the console and used "tcl" so that I could just lift myself out of there. When I turned collision back on, I fell through the floor. Tried again, and landed on the counter. Dropped down to the ground, and fell through yet again.
I tried re-loading the auto-save, but that didn't help. Tried killing myself with a grenade, but I was in the same situation when I re-spawned.
Is there a console command that I can use to teleport to a different interior in town? Maybe if I make the game load a new area, I can get myself out of this situation. I guess worst-case scenario, I could reload my last manual save, but that means that I have to do the RobCo section all over again, and I'd really rather not.