Once you get past JLT the cameras don't go off if you are doing <140 km/h, which is indicated the 140 sign you mention. The "advertised" legal speed limit is 120 km/h though. Once you get on the AUH side it appears many drivers still go by the old 160 km/h limit. One wonders if they those cameras have not been re-calibrated, or more likely, those drivers just don't care.
I considers myself an experienced and alert driver and I really don't look forward to those times I have to go that way.
Like tomorrow when I will be heading that way for the HSBC Championship.
At least it's the weekend.