Yes it is.. I know of several but one comes to mind immediately....
Jud Parker - Last months KOTM
Jud folded his wings and trailered back and forth to the Whiteman regional airport in Southern California for over 7 years.. He claims he could have his aircraft on the trailer and down the road in under 30 minutes.
If the tail is kept level and the transport kit is used de-fueling is really not necessary but it is a good idea to have as little fuel as possible.