Just before (may be 100 meters before) the customs while entering the Switzerland from France (near Geneva) there is a speed camera. I was driving around 65-70 km/h but I think the speed limit was 50 km/h. I am not sure if it flashed me or the driver in front of me, but I am wondering what is the speed limit there. The only thing I remember that there was a 30 km/h limit sign just after the camera. So, I suppose it was not 30 km/h. If it is, I am in big trouble.

Actually, I am very careful about speed limits in general but this one was really like a trap.
Does anyone know what was the limit there? Anyone from Geneva is probably familiar with that specific camera.
Thanks.