I forget what Texas is like... only lived in the pan handle for a short time. But here in FL we put screen enclosures around our pools to keep insects, snakes and gators out of the pool. Actually you can include coons, and them long skinny legged birds too. Not to mention leaves and grass clippings. We call em "Bird Cages" although it is to cage em out, not in. And looking at what I just wrote, why do I live here exactly??? Gators, snakes, birds with sharp beaks... makes you wonder
My wife is a CAM manager and I know she would agree that if you went to the HOA and told them to do it right it would take longer. I work for HOAs all the time, and find them agreeable as long as it doesn't cost them money.
I would cut little blocks out of 2x4s and anchor those, then run your bottom plate on top of them. That allows water to run under the fence (no dam created, nothing to catch debris) and air to circulate allowing to dry. You can still do it with bolts, just counter sink the nuts and cut the bolts flush