Ask them if they plan to go along with it, because you need to know if your going to need to update your resumé. Don't be aggressive, just ask nicely. The battle lines have been drawn. I perform as a worker, and I can boost sales by 40% for the competitor just as easily as I did for them. If I get fired over this, I'd thank them for the job I had, and when they call and ask me to come back, I'll ask for double pay and my bosses job.