If you plan on attending Gasparilla Parade in Tampa here are some tips on getting around and the Gasparilla Schedule.
Gasparilla event schedule: http://gasparillapiratefest.com/schedule.shtml
Gasparilla Parking: http://gasparillapiratefest.com/parking.shtml
Ybor to Gasparilla Teco Trolley: http://www.gohart.org/pdf/trolley_systemmap.pdf
I highly recommend parking in Ybor and take the Teco trolley which is cheap and not affected by traffic