A little late to the party here but if that's all our HOA was/is requiring, I'd be lucky. Truth is, nothing but daily drivers are allowed on property, even with a car cover. It's the garage or the boat/RV storage lot. Actually, fine by me, when I purchased my '72, it was to never see adverse weather again, so the garage issue wasn't an issue. Now that I'm in the process of abating the rust and new paint, among other things, there's no chance it will ever be stored outside. While I do have a cover too, that's for the garage when it's completed.
It's also all well and good to challenge or ignore the HOA but get to know the rules and state laws before you do, there could be imminent risk. Maybe this has been covered already and apologize if so but, it might provide some of our shared Commonwealth members with info they might not have.
To explain our situation, Virginia has seen fit to give HOA's an immense amount of power over the residents, so much in fact, they can create and execute a foreclosure situation thru fines and fees. The law states they can only fine a resident $900 per incident but they don't limit the number of incidents. So, if your HOA is managed by a nationwide management company, as ours now is, there are those with a darker reputation of being in the housing business as much as they are for running HOA's. Important to keep a close eye on your account to be aware of any fines or fees because your infraction was being assessed late fees. That's where they get you because many pay the initial cost of the fine but the delinquent amount owed because of the "added charges" keeps accruing interest. While we haven't been a witness to it happening, there are stories where people have sold their homes and at closing find out they owe tens or hundreds of thousands of dollars or their mortgage was settled and the HOA had title or put a lien on the title.
Edited with the caveat to the HOA and what I mentioned, we have a new one and have not heard anything about them and the foreclosure scenario I spoke of. There have been other Companies elsewhere in the US that are that unscrupulous. And, while I do enjoy a well spirited, reason-based conversation and there is more that could be said, even in a general topic header forum it's not appropriate among the 7173Mustang family.