What obstacles does Percy face on his way to camp? What do these obstacles suggest about Percy's identity?

Mother says that she will have to send Percy to summer camp in order to keep him safe but she does not explain why. Percy notices that Grover has fury legs and hooves. A giant Minotaur attacks them.

a lightning bolt hits the car and a minotaur attacks them. this tells us that he is unpopular between hades and zeus.