Hmmmm... It has been a few years since I was a first responder but if I was running code I would have:
A) stayed my course and continued to hospital since patient care is #1 priority.
B) radio into dispatch and to notify them of situation and requested supervisor meet at hospital.
I'm sure I would have taken my lumps and the hospital and maybe had a day in court, but this would have only made the cop look like an ass in front of a judge.
I'm glad the cops in San Diego are cool with EMS and I never had to deal with this.