I thought that the below information might be of interest to you.
Parking tickets for Alternate Side Parking/Street Cleaning violations (Code 21 on the ticket) issued on Thursday, February 15 and Friday, February 16 do not have to be paid. (From NYC.GOV)
According to the NY1 website- “Tickets issued on Wednesday during the storm still have to be paid. Tickets from today and yesterday will be automatically taken out of the city’s computer. “
Here is the link to the rest of the NY1 article