What qualifies as an emergency for someone isn't necessarily a 911 emergency. Got two flat tires on the car and only one in the trunk?
Around here, the local tow company will charge you over $100 to get your car home.
Wouldn't you rather "Hey, Honey, could you grab that extra rim that's in the garage and take it down to Ernie's Tire Shop and have them put a XXXXXX tire on it, then bring it up to the old fishing hole?"
Try the 911 dispatcher with a request like THAT!
Sue