Good lord, the amount of people who are unwilling to state what their issue is and actually take an action that will change the problem is ridiculous. Nothing suggested in the comments or the post will ever make a connection in the minds of the hotel's owners or managers. You'll add to their bottom line, sure, but the hotel going out of business isn't necessarily a good thing, considering the building will sit there for a few years, be sold to another chain, and reopen. The other hotels in the area are probably charging the same parking fee, or just folding it into their total cost. Maybe since the first hotel closed, they'll get to tack on more fees with less competition. You've accomplished nothing except adding more waste to the junkyard/garbage dump.

Get your ass onto a review site, clearly explain what you're annoyed with, and state you won't be going back. Go to another review site, repeat. Repeate. Repeatay. One, it makes the issue clearly visible to other people who might now choose to stay elsewhere, and two, it costs the hotel the same (well, maybe the same) amount of money but now they have an incentive to change whatever it is that annoyed you because of people choosing to stay elsewhere until it's changed.