After emailing Lars Kocherscheid today, I found out the following and thought I would share it with any other english-speaking photo uploaders.
Vehicles with assigned or marked detachments should be uploaded as follows:
Place - Agency - Car Number - Type
Collingwood - OPP - 1-052 - Patrol Car
Aurora - OPP - 05-602 - Patrol Car
MRC du Granit - Sûreté du Québec - 5131 - Patrol Car
Daytona Beach - Police - 6045 - Patrol Car
For vehicles without fixed bases, without assigned detachments, or perhaps an otherwise unknown operating base, the following conventions should apply:
Agency - Car Number - Type
OPP - 29-001 - Command Post
Canadian Forces - 71378 - Patrol Car
CN Railway Police - 301 - Patrol Car
Sûreté du Québec - 6013 - Patrol Car
If my understanding requires any modification or corrections, please advise.