High School Musical starlet Ashley Tisdale was in Miami yesterday, visiting with fans and signing autographs. Before that she was spotted at RA Sushi in Pembroke Pines of all places, dining out with pals--one girl and two boys. Nothing crazy there--a few rolls, a few Sapporos and Voss water. Total was $104. Very wholesome. For those die hard fans who care about these things, we have her check--and the last four digits of her (or Disney's) AmEx card and will be putting it on EBay post haste.