No. I hate those checks. It is a hassle and the odds of an auto accident on the way down make the once in ten lifetimes chance that someone would pick SDC to go on a rampage look very, very minuscule. It is not good for business either to shake down your customers before they even enter the park. Not to mention the fact if someone were going to do that they would just walk through the woods. What next build the "Great Wall" around SDC, just make sure it is themed.
Everyone always pulls 9/11 out as an example. How afraid have we become. I hate to break it to everyone, but you are not safe. You never have been and never will be. Not in your house, car, or out in public. Danger lurks everywhere so long as you are alive, that is why you have to just feel blessed for every day you have. It is strange to me how terrified people are of something VERY unlikely like a rampage happening to them, but flirt with danger everyday driving like they are in a race. Run the numbers of how many people have died of heart disease since 9/11, or in auto collisions and the "death by terrorism", starts looking about as likely as the chance of being hit by lightning while being chased by Bigfoot. Quit being afraid and enjoy your life. After all none of us are getting out of this world alive.