A) obviously you're not going to move out of the HOA anytime soon, so you've got to go to the meeting and make sure they don't raise the fee (more on that in a sec)
B) I really like the idea of making the cops aware of the sit, let them know of the next date of a meeting and see if they can be there....Liberty Hill use to have a nutter who would come to city council meeting, and I meet this guy was off the charts crazy, the cops would be there (a couple of them) and he would typically end up escorted out) now this was years ago.
C) I would carry, remember, concealed is concealed...no one needs to know and if it ends up that you need it, well, then you need it and you're alive, I'll donate if you need a legal fund. Honestly, I'm betting the the guy is all bark.
D) about the HOA, get a look at their paperwork...which company is running your HOA? My HOA has a surplus. is there a real reason y'al need a raise? personally if ours would let us do a couple of things more frugally I think we could cut fees, but they insist we use bonded and insured people to dispose of trash in our playground

I got on the board just so I could get some control of a little bit
ok, I've given you more than you asked, sorry