 He tries to tell this to LaGuerta, but she reprimands him, both for interfering with a FBI investigation and for suspecting Dexter.Dexter, taking Astor's words to heart, decides to abandon the city, leaving Harrison in the care of Debra, and skipping out on his FBI interview and Rita's funeral.But as he sails out from the bay, he runs out of gas, and stops at a refuelling station.