Forgot to ask, do companies review your school scores?

Some might, but most don't. I've never even been even asked for a proof of attending a driving school.

 

Been asked for proof of cdl school but never hs.

 

Some of the better companies that take students will only hire from certain schools. Those types of companies will ask for your transcript and interview the lead instructor at the school. You will find some companies that say they do not take students, but make an exception for certain schools. As an example; There is a big Fedex contractor, that states they require 3 years exp, but actually have an extensive training program for students of just 2 schools........they just dont advertise it.
Also if you go to a PTDI school, they will post the fact you are a PTDI graduate (higher standards then most schools) and your GPA on your DAC as your first entry.