My motorcycle trailer came with those flip up chocks. Although nice when closed, pulling 850 pounds of bike out of them was difficult. They also did not allow stand up without the kickstand. My bike was lowered and when in the chock I couldn't use the kickstand.
On the Cyclone, for well over 25,000 miles I used Condor chocks and after the first season I no longer bolted them down. I just put a '2-by' on the floor against the door frame or portable freezer-cooler if that was in the trailer.
Unload the bike and move the Condor to the far side of the garage.