Hope you never need this tip
Speaking of 911 for most of us if you dial 911 from a cell phone you get highway patrol. Then a transfer or two or three later you get your local police, fire, medical.
These dispatchers do a tremendous job but for most of us while I hope we never ever need it pleeeeeeease put the local pots (that's plain ol' telephone service) numbers for police, fire and medical in your cell for where you live, work and ride.
Those of you with only a cell and no land line this is doubly important.