Good point, and if you really want it to be dangerous, you could hire some Muslims...
Knowing what’s left of the population in Detroit they’d likely fail to know the difference between the park and “the city”.
Detroit has already been overrun with brain dead zombies whose chant is, “CHECKSSSSS!” “STASH!” “CHECKSSSSSS!” and shoot each other.
How are we really going to know what’s fake and what is the park?
In Detroit, the Arab Muslims are the ones who own businesses, obey the law, pay taxes and work 7 days a week.