The City of Boston Resident Parking Permit Renewal web page could use an upgrade.
You ask for a phone #:
But you don't specify a required format.
Then when the phone # isn't in the secret format you want, you display an error:
It's a computer.
If the user keys in 6171234567, you should figure out that it means 617-123-4567.
It's not the user's problem, it's yours.