Share 'Code 3 response'

I am interested in knowing how other departments operate in code 3 mode. My department allows for 10 mph over the posted speed limit. We must stop at all Red lights before proceeding and altough not a department SOP or SOG I choose to not run code 3 on the freeway (unless the incident is on the freeway), I have found at times it can increase the response time due to confused drivers. What are you…