Dodge charger overheated not starting?

Hey yesterday i got in my 07 dodge charger rt(5.7L) and it was driving like normal.never had any problems with it before.it was driving perfect but about 5 min. Down the road it was overheating.no smoke or anything comming out but needle was already in red.i pulled over but right when i did the needle goes back to normal(never turned car off)so i decided to drive the 5 min back home to take a look scince needle said it wasnt hot.so i turned car off and popped the hood.it was HOT.i looked at the coolant resavoir and it was pretty empty.i just filled it about a month or so before when i just bought the car.so i filled it up...let it cool down for few hours and tried to start it.it just turned over and wouldnt start.tried for like 10 min. I put my code reader in and it just said it was hot.the code eventually went away and had no other codes. Also the dash had the Electronic Throttle Control warning light...but that went away as well.i have no codes or warning lights(exept for traction control and brake light from disengaging traction control with diablo tuner) but car still wont start.only turns over and acts like no gas is getting to it.did a computer burn up?if so its not showing up on code reader.is it a saftey thing that activated or something? Please help thanks!