Not sure what a SR cure is Phil, but see no reason you couldn't rinse and dry it and smoke it later this week.
Or just leave it in the cure, it won't get over cured, might want to do some extra rinsing though.
I put a 6lb pork belly in SR cure last Wednesday night 3/1 and I plan on smoking it on Sunday 3/12. I will soak it at least twice prior to drying it out. I can't wait to taste it and tell you all how it turned out.