Unless you're in like Utah, where the church still has a fairly firm grasp on the local government, most cops really don't give a fuck about pot any more unless you're driving.

In a lot of jurisdictions it’s also not illegal to be under the influence of a narcotic unless there are other factors involved - driving a car, being a public nuisance, or otherwise engaging in criminal behaviour. If you’re high in your own home not bothering anyone (and you’ve already taken all the drugs you have so you’re not otherwise in possession of any) you’re not committing a crime. That would apply in this case.

Some of them apply to rendering aid too, so if you try to save someone's life and fail you won't be charged with anything.