Can I exchange currency and buy a SIM card at the airport during the Test and Go program in Thailand?

During the Test and Go program in Thailand, while passengers are generally funneled to the transport area after showing documents and taking the test, some activities like exchanging currency and purchasing a SIM card may be permissible at the airport. Specifically, there are ATMs available at Suvarnabhumi Airport (BKK) and a SIM card counter in the baggage claim area. However, it's advisable to consider that passengers are treated with caution, similar to those who have COVID-19, until their test results come back negative.