Not defending or admonishing them, not enough facts presented. I was not there and did not witness the incident. Agree with above that the best course of action is to call the Chief and express your concerns and let him investigate and take action as necessary.
All emergency vehicles are required to use due regard when responding to emergencies. This is a judgement call that would be up to the judge or jury if something bad happens. Now you also have to look at whether the call was a true emergency, this is important in determining the level of acceptable risk that could be taken while responding.
A few things to ponder from the above discussion.
Fire Trucks are big and make a lot of noise so perseption is that they are always flying even though they may not be.
They are also large and take a lot longer to stop than a normal vehicle, so pay attention and give them room.
No one has said what the nature of the emergency was so its possible the call may have been high priority.
What is an acceptable speed for response? If we are concerned that someone could walk in front of or pull in front of maybe all responses should be routine or only at 5, 10, 25 mph. There is always a risk of something or someone pulling or jumping in front of it.
Does a few seconds make a difference? Watch this and decide for yourself.
NFPA FIRE GROWTH
Also keep in mind if someone is not breathing brain death starts to occur at 4 minutes, so yes the few seconds could be the difference in life or death.
These are all volunteers and many critical decisions must be made on each and every call, and the operator has to weigh all info and decide what risks they will take and not take on every call, no one is perfect and hopefully the right decision is made.