Hi Ana, I'm sorry we weren't able to respond to your question in a more timely fashion, and hope your rolls still turned out beautifully! If the rolls hadn't risen at all, it seems like you might have been okay letting them rise for longer, but it does sound like something might have been going on with your yeast if there wasn't any rise after 6 hours at room temperature. If the rolls were partially risen, sticking them in the refrigerator until you returned might have been the way to go. 

If you're ever in need of more immediate assistance, please don't hesitate to contact our Baker's Hotline. We're here M-F from 9am-9pm EST, and Saturday and Sunday from 9am-5pm EST (extended to 7pm during the holidays). You can reach us by phone at 855-371-BAKE (2253) or via CHAT. 

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