You can try pulling the TPMS fuse to see if they light will go away. I run my Lexus on steel rims and snow tires in the winter. The TPMS light comes on but I don't mind it that much. I plan to do the same with my Odyssey.
When putting a set of snows on an extra set of alloys for my wife's 09 CRV, I left the TPMS sensors off. The yellow light is on but is now covered with a sheet of screen protector with black tape on it. This way the cover is easily take off with no adhesive residue.
I can not believe that Honda only allows 4 TPMS sensors to be stored and any time, gets expensive if you use snow tires and want this function.