Trees

I'll be going on a road trip to Yellowstone with my family and won't be able to smoke. I'm planning on taking a cart with me to hit at night before bed, so I'll be able to sleep. My concern is that I remember hearing when Colorado first legalized weed there were checkpoints on the Wyoming border. It would be packed away in my luggage, so unless there's a dog I'm not really that worried. So I guess my question is does Wyoming have border checkpoints with drug dogs?