Please Chance My HS Senior Son in Maryland with 4.0 GPA, 1530 SAT, Public Policy

5.68 is meaningless and will only give you false hope
I only know of one school that uses a scale higher than 5.0

So you need to recalculate your GPA
You can look at each school you are applying to website and see if they list a formula

or to get a general idea add 1 point for college level classes in core subjects plus FL and .5 point to honors
this will give you a general idea of where your GPA stands
But look at website for exact formula which should be similar ie. some count more things in core or only certain DE etc
If you are applying UC’s or Georgia don’t add extra weight to Honors

Some schools will say they use unweighted GPA but at the schools you are looking at they account for rigor they just don’t tell us their formula to do this

So are you able and willing full pay for example University of Miami is over 90K a year now
or will you need Financial aid and merit to attend if you do you need to run the net price calculator for each school to see if it is feasible financially

You need to really know these two things before moving forward