> My non-NYC jurisdiction requires most parking lots be paid by mobile app

Do they not offer an SMS alternative? Because both in ATL and Seattle, they always put the app upfront, but on the same sign there is usually a “or text abc to phone number xyz” signage.

Just checked to confirm, PayByPhone (which is the most common parking app signage I see in Seattle) indeed has official support for paying parking through SMS listed on their website as well.