I wrote an email to Canada’s Wonderland about the Gatorade incident, and here’s their response:
Thank you for contacting Canada’s Wonderland. We appreciate your feedback and I have forwarded it on to our Security for their consideration. Our No Outside Food Policy has been in effect for the past Season and was instituted by our new Parent company, Cedar Fair. This is a policy that they enforce in all of their Parks with exception to water and individual portion snacks, as well as any dietary required foods.
In regards to your concerns regarding our metal detecting protocol, I have spoken with the Managers of our Loss Prevention department and relayed your concerns for them to review. Please rest assured that we have never had an incident of a prohibited weapon getting in beyond our metal detectors.
If you should have any further questions or concerns please do not hesitate to contact me.