I'm paraphrasing what I have read by others who know more - I understand that this is a risk when the supercharger is put back on. Nothing you can check - they need to remove and replace the supercharger properly this time. It's safe to drive. If it doesn't go into limp mode with normal driving then drive it normally - since one bank is restricted then don't put your foot down - although all that could happen is that limp mode would be triggered.