Can you hold flowers within a vehicle over dark? I'm planning on buying flowers for my gf the day earlier valentine's...

I'm planning on buying flowers for my gf the day earlier valentine's and keeping them hidden within my car overnight so I can win em out and surprise her in the morning. My simply concern is whether the flowers will survive in lone water overnight surrounded by the darkness of my saloon...anybody know if they can make it overnight?
What is the best time of the year...
Answers:    Yes, they will be fine as long as they hold a water supply and the heat inside of the locked up car is not too hot or cold. The just thing that will lead to them to wilt is freezing temperatures and excessively hot temperature. As long as you put them in the vehicle just when the sun go down, they will be fine in the overnight temperature. Look at the florist shops. To preserve freshness, they put the arranged bouquets of flowers in a cooled cooler (around 40 degrees) for their customers to view in the past purchasing. Use this as a positive example. Good Luck!...

...$Billy Ray$
If a tree falls and no one's around...
the severe weather change may impose the flowers to wilt or dye. Flowers are very sensitive especially roses. the gloom will not hurt them mostly the weather.