24 Hour Flowers - Is it true

I have always been interested in the concept of 24 hour flowers. I dont know how it works. I dont know how they could promise delivery all hours of the day but I have searched all over the internet and there are many who call themselves 24 hour florist but when you call or check the website it states that they only have 24 hour ordering not actually 24 hour delivery. But here is one in North Carolina,
This is very interesting , it appears to be a fresh flower vending machine

it is at the RDU Ralleigh-Durham Airport in North Carolina
Fresh flowers are located in Terminal A on the ticketing level and in baggage claim areas. In Terminal C, flowers are located on the walkway to the security checkpoint and in the baggage claim area.

This service is available 24 hours a day, seven days a week, accepting cash and credit for your convenience


There is another florist in Singapore that I found who do say that they do 24 hour delivery. The website is www.24hrscityflorist.com/