If you are in Guilin, I think, most probably, you are talking about Rice Noodles, which is on every street. It is safe to eat there becasue: 1) All the plates and chopsticks are disinfected from Government companies and they will be used only once for the day and at the end of the day, The Government disinfected company will come to take them away for disinfection ---- When you are using them, please make sure that that restaurant use the disinfected dishwares and chopsticks. 2) Even you are not eating rice noodles, most of Chinese food are cooked or deep fried, they are always fine to eat. Go to enjoy.
Rice Noodle shops in Guilin are required to use disinfected dishwares, there is always a piece of paper attached for non-used dishwares.

Disinfected Dishware, it is always rapped with plastics:
