2021 Cadillac Escalade engine failure

2021 Cadillac Escalade and service just told me that the engine is a complete failure and needs to be replaced. I was picking my son up from friends house around 11 pm when the car just shut down. On a dark, narrow road….on 4th of July, luckily the hazard lights were on but I wasn’t able to put car in neutral. Had several near misses to fast cars. Anyone else with this issue?
Thank goodness we were not on the freeway.