" A drivers license is a privilege."
Actually:
A license is just legal permission for the privilege to use the road system, including the Federal Highway System, which you pay to use by buying said license, tags, stickers etc... Those funds along with other taxation are what keep those roads existing, and hopefully well maintained. (Remember the Federal Interstate Highway System was never built for you the citizen anyway. It was built for movement ofmen, material and weaponry to any given location quickly to provide for rapid deployment in defense of the United States of America.)
Monitoring the public airwaves is not an privilege in any way. It is covered more so under the "Unalienable Right"... "pursuit of happiness". Legal and responsible monitoring is covered under the ECPA, and whatever changes they make in the next year or so to the ECPA. Other various issues with communications are also involved in the Patriot Act, and other legal formats which get into the groovy scary freaky world of National Security, Homeland Security, Anti Terrorism, control your every waking and sleeping moments the government you elect live to do. (And yes sarcasm is fully intended in there.)