While waiting for your ID you can go and get an age of majority card for temporary use. It's basically ID that proves your 18 or older government issues and is typically used by people who do not have drivers licenses.
That is an acceptable form of ID for age verification.
Saskatchewan Age Verifier! Contact for more Info.
http://airsoftcanada.com/showthread.php?t=174161 - Honour & Respect your fellow players! #Airsofthonourandrespect