This is great info. I have had Sunpass for years but never had my camper's plate on my account. I ran into an issue with my car driving through Orlando on my way home from work where the transponder did not register. I received a letter in the mail with a picture of my car and a notice of non-payment of toll with a service charge. Turns out, this occurred just when I got new license plates in the mail and had just installed them on my vehicle, but had not updated my Sunpass account. I had to update the account and enter the effective date prior to when the toll "violation" occurred. That took care of it; but I never thought about towing the camper. My account is now updated. Thanks again for this info.