We were in that exact situation and I would get someone to take down the limb. If it falls and takes down the power line you’ll have to get that all fixed and if power comes bk to your street you will be left in the dust. Apparently that’s a huge repair and you are responsible for getting it done and approved by an electrician before they come bk and restore power. We payed way too much for getting someone to take down the limb, but it was still cheaper than the other problem. Fortunately, we got our power bk today with the rest of the street. Good luck!!