Méxicos economy is dependent on the U.S. there is a huge manufacturing industry that it American, most if not the majority of prices are established in dollars and then converted to pesos, Mexico no longer has 100% Mexican banks, the majority are U.S. and the rest are English, Spanish, Swizz, German.
All money transactions are done in dollars, all the pricing of hotel rooms is based on the dollar, if the tourist industry uses the dollar as a base for pricing, no amount of complaining is going to change the way an RV park charges, that is one that the owner does not want to loose money.
You are basically paying the same amount in dollars, just a different amount in pesos, best is to lay back on the amaca have a beer and enjoy.
Hay que gosar la vida loca.
navegator