From Capital One:
Their new credit card contract grants the bank to send people over to your home or workplace to convince you to pay, and they also reserve the right to spoof you into answering the door or phone through the use of deceptive means.
When banks pull stuff like this, they eventually get the public angry enough that they spur Congress to act. This is pure doucebaggery. There is a legal process for a creditor to get paid, and using mafia style harassment is not a part of that.