By David Edwards Georgia prosecutors offered Rudy Giuliani a bus ticket after he claimed he could not comply with a subpoena because his doctor would not let him fly. The former New York mayor was scheduled to appear on Tuesday before a special grand jury that is investigating whether former President Donald Trump illegally interfered in Georgia’s 2020 presidential election. Giuliani’s attorney, Robert Costello, said that the judge had excused his client from testimony on Tuesday. According to court documents, Giuliani provided prosecutors with evidence that his doctor had ordered him not to f…