You csn get arrested for not snitching on your own sons location?

You can get arrested for obstructing a police investigation. In this particular case, it appears that the father picked up and removed his son from the crime scene. Possibly also tampering with the crime scene. He has made himself an accessory to the crime after the fact. No different than a get-away driver for a bank robbery.

Also, I dont think holding a father responsible for the crimes of his son

The father isn’t being indicted for crashing a pickup truck. He’s being held for obstructing justice, which is an entirely different crime.