I got a better one, I think.

Hunter wasn't just smoking crack out of that pipe he was smoking meth.

He probably decided he needed the data off the damaged computer during a manic meth bender. He then crashed for a few days to recover, woke up and had no recollection of the event ever taking place.

We already know he is dodging child support payments and God knows what else so my guess is Hunter doesn't return a ton of calls.