If you go all-out on the carbs,the rice, the breads, the poppadoms, the booze .. or any of them, you will probably see a large spike in your bg which should then come down over the next few hours. You may not notice any side effects at the time, you may be thirsty, you may pee more. You may think you got away with it..
However there's another current thread from someone who had carb blow out, sugars seemed OK but had various nasty gastric and illness symptoms in the night and into the next day.
I find if I overdo the carbs I feel nauseous and sluggish the next couple of days..
1 trip off the wagon is unlikely to cause or add to diabetes complications, but 1 trip can easily lead to 2 the 3 then 4 and it can be a downward slippery slope.
Thees no rules. You have control of your own body.
Whatever you do please report back