I would consider backing in and posting a pick with your front end in the road. Send it with another letter explaining that you are trying to comply with the rules but even parking in the driveway puts the rig in the road. IYO parking on the road itself is safer and then request that exemption. Good HOAs will often work with you if you clearly explain why you're doing what you're doing. Of course pull back into the street for safety reasons after you get the pic