RangersCrusader

If I'm being pulled over by a civilian vehicle with a siren light on the roof like a detectives car in tv shows should I call 911 before pulling over? I'd be concerned that it was someone trying to rob me with a $10 light off eBay. What should one do in this situation to confirm the "officer" is legit?

Thank you.

Would you come back if a community movie ever happens? (pls say yes)

My palms are sweating just thinking about someone sitting on a ledge 5 stories up.

I read this as "Community film in the works."