The Rescue Vehicle stamp issue is now moved to 04 May 2024. Coincidentally it corresponds to the International Firefighters Day (Hari BOMBA Sedunia): https://www.firefightersday.org/
Since it is a Saturday, those states where Saturday is an off day will see the products being sold on the next working day.
I think the most concordant is Ulu Kinta or Ipoh cop as the national event is held there: 
KLites, see you on Monday 06 May 2024!
May the 4th be with you!
Oooo, by the way, the images are floating all over the internet. Here are the extracts.
sky52200


