Terramar knows that his aunt Queen Novo wouldn’t be too thrilled about waking up and finding out that her daughter Princess Skystar is driving a human bus as a hippogriff.  
Queen Novo reaction would most likely be Terramar and Dan why didn’t you two clowns stop my daughter Skystar from driving the darn bus down the beltway?  
Oh you two don’t give that look like oh you didn’t know she would try or could dive the bus even though she has no whatever to dive the bus?”
 
Naturally Queen Novo’s sister Oceanflow and her mate Skybeak would think it’s ok for their niece to drive a bus thinking she is old enough.  
Not to mention Skystar kind of does whatever see feels like unless Novo gets mad.  
But the reality is Queen Novo is very nervous about being in a place that is not her throne room or castle or Mt. Aris or most of all her throne room in Seaquestria.