John: 'Power down' is not an available option most times around here (NJ). As to PPE, perhaps someday the municipalities may jump on that bandwagon. It may take someone getting injured, or worse; or one of the numerous lawyers to jump in.
I've been opening live panels for about 30 yrs; seen my share of messes, and I guess luck is shining my way. As to pulling the meter.....NO; cutting the drop?? we don't have a ladder!