If you want her to get around in Pinellas County then you should rent a car. Are you looking to stay near the main campus?
Plenty of nice and reasonable price hotels in the area. Your pick.
Good luck to her! The Marriott is nice and is right down the road. The Hilton at Carillon Park is also close, very nice, and probably a little more expensive. I believe both offer a shuttle to HSN. There are a few more hotels nearby off Ulmerton Rd. All are within a very short distance and in a good area. If she wants to explore the city, a car would be best, however, if she's just coming in for the interview, she can take advantage of the hotel shuttle, get a cab, or use a ride share service like Uber or Lyft for cheap. I wish her the best of luck!
The Marriot just down the riad (maybe 1-2 miles) is convenient: St. Petersburg Marriott Clearwater in St. Petersburg, FL
Thanks! Your answer is awaiting moderation.