I'd definitely be ringing or emailing just to set my mind at ease. You're not going to want to use them again if that's the conditions they're in! But I hope she was just in there to wait for you.

FWIW we put one of our cats in a cattery for a couple of nights while we were doing some renos. I know for a fact she was in a nice roomy cage with access to an outside area of her own; still came home all freaked out! She took some time to calm down that's for sure lol!