A few weeks ago, somebody posted that Wyckoff Chrysler had stopped taking on-line orders. I pooh-poohed that account, on the grounds that I'd placed an on-line order with them a couple of weeks previously.
Whoever you were, I apologize. the situation, obviously, had changed between my experience and your post. Tried to place an on-line order yesterday, and guess what: they were having some sort of trouble with parts.com, and now require the email interchange you were reporting.
the good news is, Tenafly Chrysler-Jeep not only still does on-line ordering, but offer a 30% discount off list!)