проще всего смской
Не уверен, что это будет работать на российском номере.
Про транспортную карту прочитал, что платить можно:
The NOL Card is a smart solution for a myriad of transport-related transactions in Dubai. The card allows you to pay for different modes of RTA transportation. Whether you travel via bus, metro, water bus or tram, you can pay for all that without hassle using the NOL Card.
The same NOL Card can be used to pay parking fees in Dubai. The RTA has deployed specified machines across parking lots in Dubai to simplify ease the process to pay parking charges in Dubai. These machines use the NOL card to charge parking fees for your parking duration. The amount is deducted from your NOL balance and you are issued a parking ticket for the same.