Okay found some, here's Massachusetts, and here's one in Chicago, and another angle on that one in Chicago. This ambulance didn't attempt to drive through a protest per protocol and someone died, I guess someone could say it's not necessarily the protesters fault. A NYC councilman convicted of blocking an ambulance in a protest in January 2018.... And here's an ambulance delayed in Connecticut and holy shit, I'm still on the first page of Google hits.
