My wife has a friend who had new tires put on at walmart and she lost one doind 75 down the interstate. She damn near lost it but managed to get pulled over and stopped. Definitely check em yourself!!!!!
I was going to suggest waiting and saving a bit more for the wheels you want but you beet me to it. You will be happier in the end even it takes you a little longer to get there.
If you cannot say with absolute certainty that you know what it is, take it to a pro. That way its their ass if they miss something too and you dont tear anything up because you missed something.