I ended up just taking the car off to the side to get in. I had to play with Tyna's variable after the fact to get her to continue her quest (she would just give me the normal conversation clips otherwise) and it seems to have moved on... ok... ish...
Here is my save from right before talking to the guard. (I think. I had a save from after talking to the guard, so had to back track a bit with an older save to get to this point)
Like I've seen in the past, there were event self-switches set with no way to reverse them.
The attached save is right before talking to the Pussy Fight building guard who will turn you away. Ten seconds later, Warren's car will arrive and you can progress from there, entering with him, waiting for Nesrot, or using Nesrot's car to sneak in through the roof.
@Firebane However, be aware that there seems to be an RPG Maker MV event race condition bug with these events. Sometimes, the screen will fade-out to black and never fade back in, like when you turn down Warren's offer to enter the Pussy Fights. This seems to happen if you FadeIn at the end of an event that then depends on another parallel event performing the next action, sometimes the FadeIn never completes even though the parallel event occurs but you never see the result because the screen is still black. Moving the FadeIn to the start of the parallel event seems to fix that.