report it to the local area DPS. Get an incident number on your observation and ask for a clarification of what the officer was assigned to at the time. (That way you will know for sure what the overall picture was)

If you had a department I would have suggested contacting the watch commander on duty.

I absolutly support the police. I have seen many brave acts. It is up to citizens to notify if an officer is causing more of a problem then he is helping in the same way an officer has a duty to ensure others' safety.

If you truly feel he was placing people in danger, it does need to be noted. I have done this before and found it helped in a couple of cases to make the department aware of a possible problem and correct them.

They are human too and the adrenaline rush can be pretty high while on a call. One of the things that every department I have ever dealt with has always stressed is overall safety. That includes to the public and that of their own officers.

Best of luck.

I believe I was on the freeway at the same time as this incident.  If it was a white Crown Victoria with the word "Police" on the back in blue but with no agency, I saw the side markers that said "Capital Police."  That would make sense coming from Phoenix.  I believe they are working a security detail off of the 238 just into Maricopa County.  This is not the first time I have witnesseed one of their cars speeding, weaing in and out of traffic, etc.  Call Capital PD and complain, I bet this is one of their cars.

To answer or address numerous points in your post.

85 or over is criminal speeding. 25 or over is off highway.

Officers frequently will respond to calls, even emergency ones, with no lights or only back lights due to civillian drivers. The first reaction a civ will have when they see lights are these common reactions:

1) freeze. they wont get out of the patrol cars way, nor do they speed up or slow down. this forces the patrol car to make a lane change which is extremely dangerous.

2) speed up. guess what he's coming somewhwere so I can do whatever I want. Puts other drivers in danger also makes it hard to pass them

3) slow down and not move over. my personal favorite. drop to 60 or 50 in heavy traffic so we can move around them and we have to drop our emergency response speed extremely low

4) move over right away without looking. great if you need to take a wreck before going to a backup call

To address driving on the shoulder. Have you ever pulled over into the shoulder on any highway? Normally uneven, full of large debris. Extremely dangerous... only used if traffic is stopped.

I understand your issue. My suggestion is once again report it to the department let them handle it. Also I would suggest doing a ride a long with a department. It will give you a better understanding of an officers job and the driving they are forced to do. Driving fast with lights and sirens on is not fun.