Not to be a downer, however the worse that can happen is that you bring an invasive species back to your hometown. I have seen bark beetle in action near my house and it is devastating.
There of a couple of online sites where you can buy it. If smoking, a little goes a long way.
We camp in Canada and get asked if we're bringing firewood across the border in either direction. I built a high containment lab for alien invasive species research. This is a very serious issue. Please, Don't!
We're all in this together and none of us is getting out alive.