Night Time Offering

The Gemarah in Temurah (14) cites a beratah (במדבר כט, לט) ולנסכיכם ולשלמיכם מה שלמים ביום אף נסכים ביום- "just as peace offerings may be sacrificed only during the day, so too libations may be sacrificed only during the day."  The Gemarah qualifies that the rule that the minchat nesachim has to be offered in the day is only when it is sanctified at the time of the shechita of the korban but if it is not sanctified yet, then it can be brought at night.  The Gemarah in Menachot (104a) says that one can give as a nedavah a minchat nesachim by itself.  What is the din in that situation, can it be offered at night or only during the day?  This should depend on what the nature of this split between if the minchat nesachim come together with the korban or not.  Is the din of the mincha like any other mincha, and should be offered in the day but there is a special dispensation when the korban was already offered, since it is just finishing the job, it adapts the status of הקטר אימורים and can be offered at night or is this mincha distinct from all minachot and should be valid at night but when it is sanctified together with the korban, it adapts the status like the korban and can only be offered in the day?    The Shittah in Zevachim (8a #8) says it can only be offered during the day like other minachot.  However, the Meiri Yoma (29a) seems to hold in that scenario it can be offered at night.  See also Chazon Eish Orach Chayim (126:19.)  This question would seem to hinge on one's understanding of the Gemarah in Temurah.