If it’s your CRV it’s worth money so it’s best to act. Assuming the other driver left a number I would ring it to make sure it’s genuine. Tell them you are going to have it looked at.

My experience is that most small body shops will give you a free estimate on the spot if you just drive up and it is (hopefully) very minor. Do this ASAP.

You will then know better how you stand as to the cost and whether the note is genuine. Assuming it can’t polish out you then need to decide if it’s worth getting repair money from the other driver or paying it yourself (if the note isn’t real) or going via your insurers if there is hidden damage.

Others will advise on whether you need to advise your insurers anyway if it’s really minor and not claiming. You’re probably supposed to in case there is a (highly unlikely) claim against you.