You have done very well.

In recognizing the risk of damage and calling for help, ya done good.

In this complicated situation where the power company is still in emergency mode getting other people's power back on you can go to the next level and call around for tree companies to come out. They are probably quite busy too so call a few and if they can't come out soon, maybe call your fire department. They may be willing to take a look and if it is a serious risk they may have more sway in getting an expert involved or even trying to stabilize the tree to prevent damage.

Keep asking for help is all most people can do in a situation like this. Cutting trees is risky, cutting unstable trees is dangerous. This is a situation where there aren't many people who can really deal with it so if it does fall, at least you can know you did what you could.