Are there any public events this weekend/next week where the cops will look the other way for public usage?

Obviously it's still illegal to use in public, and they can still use it to get you if you're being a jackass, but with all the 420 events this weekend, I can't imagine there isn't going to be some public usage going on. I know in the past there have been some things (not necessarily in Colorado) where cops have taken a lax attitude towards it.