My car will not start and I think it may be electrical. please help diagnose?

I woke up this morning and started my car since it -30 C (about -20 F) today. Since I haven't ran it since about a day and half earlier it did heave 2 times and then started when I gave it a little gas. I let it run on about 1/8 of a tank of gas for about 10 minutes. I then drove for about 5 mintues to the closest gas station to fill up. When I was finished I got back into my car but it would not start. The engine was not turning over but the battery was clicking. The radio would not and still will not turn off with the key. Everything else electrical in the vehicle seems OK (power lock, windows, etc) I put some fuel line antifreeze in and let it work for about 5 minutes and no change, the engine still will not turn over. I had my brother come pick me up, he tried to boost the vehicle to no avail so we pushed it off to the side. I came back about 5 hours later with my boyfriend and we tried to boost again and the battery will not even click now. I got some lock de-icer and put in on the key thinking that I maybe got a little water in the ignition and it had frozen, nothing happened. Anyways long story short, my car is still sitting at the gas station because I cannot get a hold of a tow truck since there are probably many people in the area in the same boat as me needing one. I know that it needs to come in because the battery may be dead now and I don't want it to freeze but I am at a little bit of a loss right now. Do you have any idea what the problem may be? I will have my father look at it tomorrow when he gets back from being away on work since he is a mechanic by trade but in the meantime some brainstorming would help. Thanks ahead of time : )