I can tell you that we had a similar problem when we wanted to store our TT in Washington St when we live in Iowa. Actually had to have it insured by an agent of our insurance company in Washington St. They were fine with it being titled, registered, plated in Iowa, it just had to be insured in the state where it resided.
I don't know if it makes any difference, we did not have a lien on the unit so did not have to deal with a loan company at all.
Days camping (2015)----88 days
Days camping (2016) ---110 days
2016 Wildcat MAXX 28RKX (33' TT), 2007 13' Scamp
2015 Ram Laramie Hemi
30 years RV'ing
12 different RV's