Rule #1: Don't Run Across An Active Rally Road
There aren't many rules or "etiqutte" standards when it comes to any kind of racing. No golf clap or anything like that. But there is one "rule" if you even want to call it that. And it's really more common sense if you don't want to end up in a hospital (or dead, really). Don't, ever, decide to run across an active rally road.
For starters, you may have an idea but you never really know when those cars will come flying in your direction. Much less if you'll actually have time to get across the road safely. Because if you dart out in front of a rally car you put yourself in danger, the driver and passenger, and also anyone else that might be spectating the event nearby. That's an awful lot of people that could pay the price for your imaptience and carelessness.
In this particular situation, a BMW 6-series rally car, a Lada and a Mitsubishi Lancer Evolution are all hauling ass around the track when a few people decide that the gap between the Evo and the Lada is the best time to cross to the other side. Cue the eye-roll here. These guys are the reason there are now designated stands and areas for spectators to watch safely from a distance.