Delay in responding to RFE

[mbc300 0]

Hi

I have responded to a B2 RFE well in time but USPS sent the package to DHS , VA 20598 instead of USCIS office at 20598. So I will miss the deadline stated on RFE letter. Is my extension application considered cancelled ? 
 

USCIS website states that they are accepting RFE responses upto 60 days after due date because of COVID issue. Is this true for B2 extension RFE as well ?

https://www.uscis.gov/news/alerts/uscis-expands-flexibility-for-responding-to-uscis-requests

Response Due Date: 

Any response to an RFE, NOID, NOIR, or NOIT received within 60 calendar days after the response due date set in the request or notice will be considered by USCIS before any action is taken. Any Form I-290B received up to 60 calendar days from the date of the decision will be considered by USCIS before it takes any action.