I trailer mine everywhere, and I have mine lowered A LOT. Getting in and out of an enclosed trailer can be done two ways: go through the trunk; or crawl through the window. Window is easier, I just take my shoes off.
Some trailers have escape doors on the side so you can get out, but you can do it pretty easily without one.
Also, if you haven't trailered a car before, remember to leave the car in neutral and the parking brake off.