Map Traps (as these are called) are normally pretty harmless, e.g. a non-existent, small cul-de-sac that doesn't exist. A turn restriction (which is quite invisible!) seldom is.
Meanwhile, in Toronto, I see some bigger driveways listed as roads on Google maps, and I always wonder if it’s a legally correct city survey artefact and I could park a car there etc. if I wanted, or just a trap/misclassification.
https://maps.app.goo.gl/CXRh6LFRhgZo1P9k8?g_st=ic