It should be a free service anyway. Without free public transport, democracy does not exists. Same reason healthcare and education should be. So sure, you are “stealing” a ride - something that should be yours anyway because people are not born with the ability to travel kilometers of cityscapes, something that is now mandatory to survive and thrive.

And most of all, solubility being a function of the temperature, if you lower it the excess sugar will leave the solution and cristallize.