I don't think HKS was at the hotel *when* the paramedics arrived. He came up to the room as they were working on her and was allegedly screaming and beating on people to let him past, to get to Anna.
How much is true, I don't know. But I do not believe he was there when the EMS *got there.*
Okay. But, what about my theory that the reason he didn't go to the hospital with her was he stayed behind to get rid of the drugs and that is on tape. Remember, the elevators and all the hallways have video cameras in these hotels.