if you didnt sign anything contact your/their insurance company and see what they say.
also, padwan, never say everyone is fine! you can say the "appear" okay, but not sure. it may take a day or 2 for the muscles to feel it. many times, you tense up before the crash and so you wont feel it then, but later that night or next am.
iac, if their insurance wont do anything contact yours and then go see a doctor ASAP. imo, i dont have much faith in our medical professionals when it comes to certain things. Yes they are great if they can SEE/FEEL/MEASURE/SCAN/HEAR/RECORD it, but if they cant do any of the previous, its hard for them to do anything yet alone give any treatment.