From the Roadside Assistance section of the website...
Green Bold emphasis is mine
ROADSIDE ASSISTANCE
Tesla Roadside Assistance is a service intended to minimize inconvenience when your Tesla vehicle is inoperable. This service is available during the first 4 years or 80,000 km, whichever occurs first for vehicles covered by the
New or Used Vehicle Limited Warranty at the time of the occurrence. Roadside Assistance will also be provided under the Battery and Drive Unit Limited Warranty for any issues related to either of those two components; excluding collision coverage.
For vehicle malfunctions due to warrantable issues, transportation services for the first 800 km is covered by Tesla; is limited to one tow per incident; and does not cover transportation due to issues not covered by the warranty. Please refer to our Roadside Assistance policy for full details and disclosures.
So Saskatoon and Regina are both within 800 km of Calgary Service Center, ever ask for a tow there and arrange for a drive home?