The good news - from what I understand first time offenders have the option of a "diversion" program. So he should be able to get himself into that program to keep this off of his record.

Not surprising the tow bill is what it is. Life's lesson, though - tell your son he was damned lucky he did not do what he did somewhere else. Here in Illinois they would have tacked on an addition $500 "administration" fee to get the truck back (in addition to the towing and storage fees). Otherwise they'd be looking at seizing the truck due to the drug charge.

Last piece of advice from a father to a father. Be a father, kick his butt but be there for him - and don't be too hard on the boy. As much as it pains you to hear this right now - trust me - one day you will laugh about this with your son.