Be concerned. How important is your beer to you? Re-rinsing and sanitizing your bottles again is a minor chore if it will ensure your beer is a s good as it can be, imo. Bottom line is I don't know what effect, if any, it will have. But mixing chemicals like that is never a good idea. At best, you're changing the effectiveness of both chemicals to an unknown degree; at worst the combination could be dangerous. You know you haven't sanitized correctly, so go back and do it the right way!