Trying to be optimistic as to whether I should view the radiator as half full or half empty...LOL. So I noticed a small puddle the other day. Opened the hood and the reservoir was almost empty. After driving home form work the radiator cap was still cold. Thought that was odd. Opened it, and no coolant. The radiator was warmer about halfway down so I assume there was some in there. I'm getting it fixed. I think its a hose because I see dry residue around the passenger side. So long as there was some fluid in the radiator, should I be ok?
Holy moley dude, did you pop open the radiator cap to see if there was coolant in the radiator at least before you drove home?
If not, then you actually don't have any idea how low/how much coolant your system had while driving home. You may or may not have dodged a bullet but if it were me I'd do as one other person suggested and get it into a shop and have a mechanic look at it. I'm sure you know that there's a buttload of problems that can be caused by high heat due to low coolant.
Some of the problems are in the "screw it, I'm selling the car" category of warped heads/cylinder cracking etc, but you won't know for sure until you have it looked at properly.