> Are bears breaking into people's cars?
I doubt it. They won't if you follow the bear safety rules.
> Is it safe to have food in your car if you are camped outside next to it
NO! You cannot camp next to your car anyway. (Although not at this location, I once had a bear drag my backpack away that was right next to me while I was asleep. I had forgotten to empty snacks from one of the pockets.)
> or should I use the same precautions I would use in the portal?
Yes. The camp sites are all walk-in, so you camp some distance from your car. The bear boxes are near each camp site.
