I am assuming that you are both referring to some news that has just come out about abating penalties and interest. 

For the 1040 and California there are separate "Electronic payment date [O]" entries. If you press each one you will see that with the current system, the date can not be after the filing date of the return. Possibly Lacerte will modify that information, but I sure would not count on it. 

If you really want to game the system, file on time to avoid late filing penalty (as of right now there is no provision for a later file date.) Override the amount being paid with a -1, then go to https://directpay.irs.gov/directpay/payment?execution=e1s1 for Fed and https://www.ftb.ca.gov/pay/bank-account/index.asp for CA and set up your late payment to gain your few days of free money out of the government.

Personally, I wouldn't play that game.