I do? Well, here goes.
Your character has been discovered by enemy agents. You have time to grab only one object from the room you're in. What is that object and how does it help you to escape capture?
For Sam, that object is a high-power portable radio transmitter. 90% of modern pursuit tactics, military or police, hinge on use of radio communications to coordinate personnel. With the right tweaks, a radio transmitter could completely blanket those frequencies. Without that communication, every officer would basically be on his own; no support from command, no information from other officers...nothing but his own eyes and ears to rely on. Hell, I'll bet it's even possible to set it up so that it uses cell towers or Wi-Fi hotspots as signal relays. If that's the case, you couldn't even pinpoint her location by tracking the signal; it'd be like trying to figure out which raindrop hit the puddle first.