I agree w/ SK2003...I had a 2005 C6 Corvette a couple months ago that I kept for the weekend. I Washed it when I got home from work and the applied Z2 then Z5 and I wanted another coat of Z2 to finish it..I was so from working that day so I just let it sit overnight..It came off really good..
It will be fine. Once you have at least 1 layer of Zaino on there, you can also apply a layer w/o ZFX and let it dry overnight. It should still bond, but I'm not sure if it would have looked better with ZFX.
Over night curing/drying of a garaged vehicle is perfectly fine. I have left an unbuffed layer on for several days without any ill-effects. As a matter of fact I prefer the last coat to stay on overnight (garage detail). Especially when I do a Z1 (cleansing and gloss enhancement) layer followed by Z2-Pro or Z5 with ZFX. Excellent protocol for increased "richness" on black. This is followed by Z5/ZFX x 1 and Z2-PRO/ZFX x 2 the next evening. :faint: