I was told that it will be holiday in Brunei for the next few days. So, many cars crossed over to Miri. Some people actually waited from 8AM and didn't arrive until 1PM. So, we have been very lucky.
It seems that every time we went back to Limbang, something would go wrong with my car. Last time, it couldn't charge. This time, the aircon compressor jammed and therefore burnt out the moment we started our journey from Limbang. So, we have no aircon from Limbang to Miri and have to be baked under the hot sun for four hours!