The Courtyard by Marriott was offering a deal for around $25 per night. You could try that.
Now on to some not so good places...
They could drive down 192 East and find about a dozen or more $19 a night rooms in the Old Town area. But it's a scarey area, some crime, a heavy black market in room keys (most of the cheap-o places still use real keys instead of card keys). I would suggest that while cheap, it might be worth it to stay clear of the area.
I'd make sure they stay very clear of all Knicghts Inn, Days Inn, the Gator Inn, the Thriftlodge.
If you have an Entertainment book you might look to see what's available at 50% off, you can probably find them something pretty decent in the $40 range.
Anne