The thing that seems off to me is a small 1 to 2 second window of saying "Hey, ill be right back" would have prevented all of this from happening. Now, am I saying that you're lying? Well, no. But, I have seen many many many times before where someone has said something to downplay a legitimate punishment. So, lets break down the basics.
1. If something happened IRL, a persons normal reaction 90% of the time is to give off that really quick "1 second" comment, or "I'll be right back." The only times I have not seen that happen is when or if it is seen or something can be heard in the background.
2. While it can be said that you didn't notice SCU in the distance, their cars are easily distinguishable (unless it was undercover) but even then, gov use cars that crims can't get access to. The ONLY exceptions to this is some High Command cars and MAYBE the occasional Low Command or Enlisted car. Depending on this though, could vary in whether or not they were seen. Other factors go into play such as being right next to bank (where the shadows are) or just blatantly not paying attention.
That's my view on it anyway. Maybe it makes sense, maybe it doesn't. Up to you to decide that.
-SUPPORT