I've been lurking for a while and even though I have a copy of the City of Sparks Ordinance #2445 that clearly repeals the law, I wanted to clear up my suspicions, misunderstandings or any uncertainties I might have had regarding the possession of firearms in City parks; so I got into contact with the Chief of Police (Sparks) last week and he confirmed today (after reviewing) that it was perfectly fine to open carry and that they would in fact remove all signs in the near future. He thanked me for bringing this to his attention.
I wouldn't call this a victory because it isn't a war between "us and them" but more-so a clarification of the law for both parties, I hope that by bringing this to his attention he passes the information on to his officers so as to really solidify the prevention of any ill-incident.
[I know the head official of the "parks and recreation" department said they were going to remove the signs some time ago, but hopefully now that someone with more prestige and importance is on-board it'll get the ball rolling faster].