I sent them an email today outlining my observations. I don't expect a reply, but would they actually take me seriously?

I wrote to tell them I was randomly selected to be interviewed at customs at YVR. While I was waiting, I observed there was no regard for privacy. Some poor soul was being interrogated. We all heard whether or not he has a criminal record, his job, his family situation etc. Also there was no regard for our time. Fortunately some officer walked by and responded to my concern that my connecting flight was in 45 minutes. He looked over my pport and let me be on my way.