Eric drove the injured Desmond and Baron and the defeated Brian to the hospital. They all wanted to see Sam, and Eric was no exception. At the moment, none of their injuries mattered.
Eric had forced the tired-out Desmond to explain the full details of the whole situation. He didn't seem too surprised upon finding out Stephanie was the cause of the issue. But what did surprise him was how Robert was able to catch the criminals who aided Stephanie without so much as a casualty.
The only casualty in the whole incident was Terry, who was beaten to a bloody pulp and left to die on the side of the road when the thugs came to abduct Sam. Desmond was hurt, but his focus was on Sam, so he tried not to think about it until they were in the clear.
They arrived at the hospital after a few minutes of storytelling. Baron was the only exception. He missed most of the action. He wasn't there during Stephanie's outburst and was unconscious during Brian and Desmond's fight.