I'd think that unlawful carry would be the first thing that you would be charged with. Maybe even disorderly conduct.
I wouldn't do this. No way, no how. Too much to lose. I'll wait until November 1, assuming the Russell bill passes and is signed into law. On Nov 1, and 12:01 am, I'm gonna go shopping at Walmart with a copy of the new law in my pocket. I likely will invite others to come along. Then, I don't know...Breakfast at Beverly's sounds good.