Depends on what Luke is doing these days. The Majority of bases have done away with base stickers since 9/11. Entry onto the base is 100% ID check now.
they did away with the base stickers for just the reason you stated.
I didn't know that, I'm glad they are doing 100% ID cards, I was stationed at a big AFB a few decades ago, a lot of people worked at this particular base I won't mention. I couldn't imagine them ID ing all the cars that went through the many gates during the day especially in the morning.