Don't see how you could do it. Pretty much two choices; custom fab bracket that would come under the roll pan, put a hole through your pan behind your lic plate.
The first option would put the hitch bars waaaaay too low. You'd be plowing the interstate with it.
The second option would be possible but then you'd have to relocate the plate everytime you wanted to use it. Also it'd take a bit of doing to keep it looking sharp. If you did find a hitch assembly that would rest at the right spot you're still looking at having to cut the pan, finish all the edges and repaint. Plus noodling out how you'll set up the plate mounting.
More trouble than it's worth IMO.
