Can Garmin GPS display the current road speed limit all the time, like Waze? Or is it only displayed when you are using a route-to-destination, like Google maps? I often use my phone GPS and Waze app just to keep an eye on traffic slow-downs ahead of me, without any destination/route input, and it has the option to display both your speed, and the local speed limit on the road you are traveling, without a route entered. The larger Garmin screen would be handy to have, if it can do this too.