Could loud pipes impead safety?

[scott2007nomad]

I was leaving work Friday in downtown Houston when I heard sirens.
In downtown, it’s hard to tell where the sirens are coming from since the sound echos off of all the buildings.
I came to a green light going about 30mph and noticed the sirens a little louder so I slowed down only to see two firetrucks coming into the intersection.
Luckily I had plenty of time to come to a safe stop.

So I’m wondering, if I had loud pipes, and maybe wearing ear plugs, would i have heard the sirens in time to stop?
I currently have stock, de-baffled mufflers.

Any thoughts from those who have come into a similar situation?

Thank you,
Scott