Flowering hiccup

So my plants are 4 weeks into flower doing great. Now my landlord gave me a last minute notice to inspect my unit and my options are very limited. Lights off is 7am to 7pm which puts me in a shitty situation seeing as those are my offices business hours.. So my question is this: if I leave my plants in the car and they end up going without a dark cycle for one full day (not planning on interrupting dark cycle, only eliminating it for a day.) will they be okay? These are clones from mother plants that went thru flower with a few light schedule fuck ups and no issues.. Nothing this extreme though and I'm just really worried for them Give it to me straight because I do have freshly rooted clones that will live on but I'd rather not make a trip to the dispensary while I wait

My professional opinion as a non professional is that you will probably be OK.
Shit happens

Hopes are high for this crop, thank you for the good vibes!

I'm betting ok, too. Very unprofessional vote, though!
If you can keep temps, inside the car, under control would help. And out of direct sunlight AND direct line of site.
Yeah that situation stinks!! Good luck, man or lady!