Posted: Mon Mar 22, 2021 3:29pm
Just make sure that you go to the correct police station, only the National Police deal with NIEs.
A couple of websites that may have answers to some of your questions are:
Citizens Advice Bureau Spain for bureaucratic items
N332 for anything to do with driving in Spain. The site, and their Facebook page that gives updates re the rules and regulations in respect of the virus, is run in conjunction with officers of the Guardia Civil for English speaking people.
A further thought just in case you have not realised it as yet, the town of Alicante is in the Province (think county) of Alicante, the town of Valencia is in the Province of Valencia, and both provinces along with Castellon are in the Comunidad de Valencia. I explained this just in case you did not know in which province your final destination belongs.