I totally understand where you're coming from, they're will always be that ignorant element like the woman at your pool. But I think most people are compliant and wouldn't think of challenging a lifeguard.
I've just never heard of this no noodles in the pool. Especially when they sell them at resort shops!! So I kinda doubt it's a rule too, and varies by circumstsnces. We don't know what was happening at that pool for the lifeguard to make that judgment.
Hopefully I'll be happily floating around the GF pool soon

. I've started packing today!