Yep, I can use one towel for my truck if I really push it, two EASILY, but you HAVE to wash them first. It's like a new shirt. You put it on and sweat it in and the sweat just kind of beads off and it's really annoying, but once you wash it, it absorbs it like a sponge.
Sheet/pool rinse is your friend here! It really makes the towels go a long way. As Nick also stated, using a detail spray when drying really makes the paint POP and IMO makes drying easier too.
Chamois and absorbers work fine, but they also grind any dust or dirt left over into the paint.
Nick, you should talk to Dylan and Adam about maybe putting a blurb about that on the card the bag is stapled to. Something like "for best performance, wash and dry before use" if it doesn't already.
For those not in the know, NEVER wash MF towels with any other type of material. MF with MF and ONLY with MF. Personally, I hang dry all my MF. When washing, don't use detergent with softener in it. Less is more here so the unscented stuff is best. I use Adams MF detergent. A little goes a long way and it really cleans out the waxes and such much better too.