One thing she doesn't mention in the first tip about checking out your nearest Animal Emergency Hospital is that you should always call first before you head out the door. As someone who has worked at one and has visited them more times then I care to remember, I can tell you that they always keep their doors locked and you have to ring a bell to get in. If you haven't called ahead, they will question why you are there and you will waste precious time explaining what is wrong with your animal and proving you are really there for an emergency before wil they buzz you in.
At least this is true in the three states I have lived in. Too many vet clinics have been broken into to leave doors unlocked after dark. When I call ahead before a visit, someone is always waiting at the door for me and rushes me right in as soon as I arrive and announce my name.
Hope no one ever needs this information!!!