Resort credit usage

Preface this to say for the most part, I'm well versed on the usage of resort credits. I know I can use it on food, spas, shows, room service, not retail shops, etc. But I have one that is stumping me and I've googled it and come up blank and hoping someone on Reddit would know.

Can I use RCs on laundry service? I have a 10-day trip coming up and we're only backpacking this time. Before I've used wash and fold service over on Tropicana blvd. near Chinatown, but I'm thinking of just using the hotel's laundry service instead. I know it's expensive (like $2 per undie) but if I can use RC then it's technically free. Anyone ever do that?