I've been trapped once, not because of snow (alright one snowstuck aswell) but windstorm...
It was so bad trees fell down and mostly destroyed houses. We had no electricity in i think it was 3 weeks. We were not even able to take a shower or pee in our toilets. That was bad... real bad.
... Sweden...
Back to the action.
1. B sure you have something to release your " cones" in, incase the situation will be as bad as here in sweden.
2. Rent some good movies.
3. Buy a LOT of snacks.
4. A LOT of beer, coca cola, fanta or whatever you prefer.
5. Food.
6. If you of some reason flips out, get some joint, and just fly away.