As a foreigner, can you explain at 2:40, which light is red? I can only see a green light on the right side, there was no traffic light on the road it came thro

As a foreigner, can you explain at 2:40, which light is red? I can only see a green light on the right side, there was no traffic light on the road it came through. Also doesn't the US allow right turns on red? I would totally drive on those train tracks myself.. it's pretty common here, and there was no signage. Curious to see what the AI would do next if the driver hadn't intervened.