i dont recall reporting HS GPA. Definitely didnt get a transcript. I wouldnt worry about it. If they do ask for it just estimate it i guess. I doubt they check up on it.
This is correct. Other than college courses you took in high school (which you are required to report), AMCAS doesn't care about your HS GPA, nor do they ever ask for it. You are asked for the name and location of your high school, but that's it.