What Could This Be...?

So I have a You Tube channel (this is not an ad) for responding and on scene videos. Recently I didn't have my scanner on as I was sick for a couple days. Although I did try to go out to a call as I was feeling better. So I heard sirens and went outside. I saw my town's PD FPIU (301) responding code 3 priority 1 and a sheriff behind it. Then I saw my towns ambulance (1281 BLS, 1282 BLS, and Medic 77 ALS) all rolling code 3 priority 1. Also I heard a neighboring town's ambulance (Medic 70 or 4282 responding). But they went back in service after I presume t was over (we don't call code 4's). However something was odd. 1282 was using a hi-lo. I've done these videos for a few months. No matter how urgent the call I've never seen them use their hi-lo. Also they left about 5-10 minutes after arriving on scene. Usually they stay for 1-2 hours. They also responded after 301 and the sheriff as if they were waiting for a clear. Radio traffic on the sheriff/police frequency wasn't held. Anyone have any ideas on what this could be? It can't be anything too bad as they didn't hold radio traffic. But 4 ambulances (one a SUV), 2 ALS? Maybe a rabid dog, but that's my only idea. But that wouldn't explain the hi-lo or the shorty on scene time.

Edited September 21, 20169 yr by HomerS