Replacing carpet with Tile?

We have a 2006 with 4 slides. We want to replace the carpeting on the main floor (not inside the slides) with snap-in tile (no tools or material needed). We were told by the mfg. that we couldn't do that, something about the slides needed carpet to come in on. Is there any truth to this? Has anybody changed to floor tile in front of the slides?

We got a good deal on the tiles and would like to put it down next week. It is simulated hardwood flooring, skid resistant. The carpeting is so worn and thin that the new tile would almost be the same thickness.

Thanks in advance.
BJ