The front desk closed at 6pm on Friday and I was given a code over the phone from a woman, without giving much the detail where it was to be used. Luckily, there was an after hour mobile number that I could call. The lady owner told me to use the code on the digital lock at my room after she told me so.
I was charged twice on that day, but got a refund a week after. The owner was very helpful and friendly.
The positive is that it is quite quiet inside room although it is situated alongside the highway. I couldn't hear heavy vehicles go past. It is also very convenient to find places to eat, e.g. KFC, "Maccas", Chinese (closed after 9pm).
One big negative is that the room did smell a little, probably from someone with body odour. They should have used air freshener when cleaning up their rooms.