I wouldn't do it. it sounds too expensive.
However, perhaps ask the dealer how much they believe in their treatment. If they look at you and swear by it and start giving you stories of how great it is then ask them for a physical test in your presence. Hand them a some honey and ketchup packets to squeeze out on various interior surfaces, and let them set a bit. Then do the same on the exterior. They can demonstrate on an area which has been treated versus an area without treatment. Insist they use either a new or used unit on their lot.
If their products really work and they firmly believe in it, they will be enthusiastic about showing it off. If the him, haw, or balk at your suggestion, then it should be obvious...
2015 White Hawk 25BHS Glacier Package
2004 Dodge Ram 2500, 5.7 Hemi, 5Spd Manual
2008 Arctic Cat M1000 SnoPro
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