I don't often see that many cops having coffee together, although I saw about six, including a couple of under-covers, having coffee in Waves at Main & 10th last summer. I remember thinking, if you're "under cover" why would you announce to the public that you're a cop by sitting with a bunch of uniforms on your coffee break. A Downtown Eastsider told me how to recognize under covers wearing their "colours of the day".
Anyway, it occurred to me that there might be an element of risk for a bunch of cops to sit huddled together in Waves coffee shop. The VPD complain to the media that they are put at risk by people who want to commit "suicide by cop", so it wouldn't be much of stretch to think of suicide by cop in a coffee shop. But I guess it's a risk they're willing to take. (The VPD wear bullet-proof vests but so did the Tacoma cops executed in the coffee shop.)
When the four officers were shot in Tacoma, it was pointed out in the news that in many places in the U.S., police are forbidden to sit in groups in coffee shops.