Received Receipt notice after 60 days of grace period

[vsmj]

My employment with company A ended on Dec 21st 2018, but I have the pay slip until Dec 30th, during my grace period have found the job with company B and applied for H1B transfer on Feb 12th(USISC received the packet, have Fedex tracking) to Vermont center but I received the Receipt notice dated Feb28th 2019 from California Center.Even though the transfer petition is filled within the 60 grace period the receipt date is after 60 days.AM I out of status.Please provide your inputs at the earliest