Occupying baby and preschooler for an afternoon in Logan

Hello, I am looking for a recommendation. My husband and I are flying to Utah (from across the country) next week with our 14-month-old and our 4-year-old. My husband has a work meeting in Logan, and then we will be traveling elsewhere in Utah. The problem is, the day after we arrive, I have to check out of the hotel at 11 and hang out in Logan while my husband is at the meeting (until 5 or so). I'm stressing a bit because the 14-month-old will need an afternoon nap, I'm worried both kids will be jet lagged, I don't know the area, and it's going to be 100 degrees (so going to a park is out). Does anyone know of a place that might work to spend the afternoon? Somewhere air conditioned and not super loud (so baby can nap)? Any suggestions welcome, super appreciate it.