Yes it's true. Alternate Side Parking is suspended on Thur (9/30) and Fri (10/1) so that even that most devout ritual can have a day of rest. 1, 2, 3, 4, 5, 6 of them actually!
We who park on NYC streets celebrate all religions and this week especially. So while some will understandably be aware of less earthly matters, others will just be aware. So if you move your car tomorrow, you will not have to worry about moving it again until Monday. Or, for the really initiated, move it Tue and not worry about it again until next Tue.
Check Twitter AltSideParkNYC for daily Alternate Side rules in effect.