Is it loitering to read a novel on a bus all day if you also have a monthly unlimited bus pass?

When I was a teenager in Edmonton Alberta, I read most of the Dragon Lance series novels while skipping school for 6 months, (making some time to show up for tests and exams). I only got in trouble In grade 12 for a bit and had to sign a form not to skip school. The transit authority didn’t mind. Could I get away with it as an adult? Maybe while in Red Deer?