Having no luck with Bigrake1's method, I must be really unlucky because it clearly works.
I've got the Boston Pub pivot glitch. I have put all 11 Pivots around the area (off the ground so the Pivot was white). I have signed out of PSN via the XMB menu. I have then pressed Triangle and signed back into PSN. I get the Ubisoft Server message, but the Pivot wont reset. Its been there for around 12 hours, im just hoping I get lucky and it resets in 24 hours / 1-4 days?
I can't think what else I have done wrong tbh.