Weird Stuff on I-5

Last night around midnight a Seattlest contributor witnessed a lot of weird stuff going on around the sliver of I-5 under Freeway Park that's visible from his kitchen window:

* A car with its lights on was pulled over to the side of Hubble Place by the guard rail separating the freeway from the street and sat there for a few minutes until its occupants got back in and drove off. Were they pissing? What are the odds two people would have to piss at the exact same time? What could they have possibly been doing?

* Later on I-5, two cars in single file in the right lane just sat there with their lights on while other cars passed around them. Suddenly they took off, with the car in back tailgating the one in front.

* A few minutes later, a figure (A man? A woman? Who knows?) could be seen running across I-5, disappearing out of sight beyond the overpass wall. Cars continued to fly by normally.

Our witness was suffering from a perhaps real estate investor-related insomnia and continued to drink. He waited for more shenanigans that might shed some light on what the hell was going on, but none ever came. The context of this epic narrative remains a total mystery.