I'm assuming that the bed covers discussed in this post are of the BAKFlip G2 style, that can be folded up and stowed against the rear window, causing the view blockage when hooking up to your hitch. I have the BAKFlip G2 on my short bed Ford Super Duty. When I picked up my BC from the dealer I had my bed cover on the truck. I towed it home with it up against the rear window. I don't like it fot three reasons; 1.) I couldn't look in the rearview mirror and see my hook up. 2.) It reduces the degree of the turn when backing up. 3.) I can't open my toolbox which is installed up against the front of the bed.
Since the bed cover is narrower than the cab of the bed, you can't see the ends of the bed cover when backing. The decreased radius of the turn caused me to contact the cover with the front cap on my BC and caused some scratched paint. Because of this I now remove the cover when towing. That is a royal PIA.
So that is why I asked if you tow with the cover foldedup. Am i making to big a deal out of towing with the cover installed?
Thanks for reading my long post.