Ways to mitigate safety risks with double cylinder deadbolts on enterance/exit doors?
The way to mitigate the safety risks is to not use a key inside.  It doesn't provide any protection, anyway, so there is no good reason to use that type of lock; it is inherently unsafe even if locally allowed.  


The vast majority of break-ins don't involve picking locks, sawing through deadbolts, cutting arm holes in the door, or using other fancy, slow methods.  The goal is to get in and out as fast as possible, and burglars look for easy opportunities.  Your real protection comes from encouraging the burglar to look somewhere else.  

Doors that are not security doors, that have locks with short deadbolts, and don't have any reinforcement at the weak points, take only seconds to simply break the door open, deadbolt and all.  That's what burglars look for and try; an inside key is irrelevant.  

If you make that difficult, your typical burglar will look for another house that's an easier target after a couple of unsuccessful tries.  If they've specifically targeted your house, the door isn't the only, or necessarily easiest, route in.  For example, they can bust out a window.  Focusing on an inside key is looking in the wrong place for security.  

There are lots of ways to make a door more difficult to break open.  There's tons of advice online on simple things you can do.
There's only one type of door where an inside key might even be a consideration -- a door with decorative glass within easy reach of the lock mechanism.  That invites breaking the glass to reach the lock inside as an easy first step.  If they find no lever on the inside, step 2 is the brute force option they would have tried anyway.   

If that's the type of door you have, and why an inside key seems relevant, the better solution is to get a different door.  The appearance of a potentially easy way in might be what makes your house an attractive target in the first place.  


Keep in mind that your property is insured against theft, and burglars rarely break in when someone is at home.  So an inside key jeopardizes your own safety, doesn't offer real protection against break-in, and would be there to protect property that's insured.