with Chaeng Wattana Immigration flooded I didn't want to take the risk sending my 90 day report by EMS this time.

so I went to Soi Suan Plu on Wednesday Nov 16th

there was no queue and I was done in 5 minutes

while there I asked 3 different immigration officials if there would have been a problem in case I had mailed it to Chaeng Wattana

they all gave similar answers:

if sent 7 days before due date and I have the receipt from the post office no problem

I believe representatives of every flooded immigration office in the central region are there. I did see the Ayuthaya and Pathum Thani desks there today.