Wow. Ok. Lets see.
First of all, congrats on a new BP, normally its best to get the stuff before the animal itself, but thats moot now, so..
Look in the Python Regius Forum, which is the Ball python forum. One of the first few Posts is an FAQ sheet that will explain what a ball python needs in its enclosure. You can jump to that thread using this link:
http://www.ssnakess.com/forums/showt...threadid=49236
You need to keep your snake warm tonight, and I am assuming you are getting a heat source, hides, and anything else you may need first thing tomorrow, if for whatever reason its going to take longer than that, I would take him back to the place you purchased him and ask them to keep him on hold for you in the store until you are able to get what you need. I would leave the light on for tonight to make sure he doesnt get too cold, but I doubt that is keeping him warm enough. 75 is about as cool as you ever want a BP to get. Read up on their needs in the BP forum, and post any specific questions about their care you may have in there.
Other than a light bulb, if you have a heating pad you can set on low and put UNDER the current enclosure, that might be better. If you have a normal people thermometer you can check the temp by putting it between the bottom and the heating pad to make sure its not too hot. Temps and things are explained in the link, and that forum in general is all about BPs
Hope this helps-
Artemis