I agree totally with Charlie. If they have the interest, they can go after you. I think the highways would be more dangerous because most have some cameras posted now. I've also read about boxes along highways that can read IDs of Bluetooth devices. Again, it all comes down to their interest & funding.
BTW, I looked it up & the raid was on October 7, 1991, near Limon, CO. Station was using 1 kW. Really wish I'd heard it, but in the days before the Internet, if you forgot for a day to tune around one of the lesser-used bands, you couldn't hop up on HF Underground to see what you'd been missing.