the dealer will be stupid not to physically deliver your vehicle to you, as you can always walk to another dealer and buy a car from them instead.
( a contract is only good if its consumated, meaning you took delivery of the car physically)
this is called "spotting"- just a term they use, it means , they make a judgement call, based on your credit if its credit worthy. it doesnt mean they found a financer, it just means you are credit worthy and WILL BE finance by at least one of their sources.
if you have good credit( meaning you have a history of paying your bills, and adequate, verifiable source of income)---enjoy your vehicle!!
p.s. no insurance will not stop any franchised dealer from spotting you the car, but its wise to get your insurance before you go there.
to your added question:
no, insurance companies will require a valid drivers license, the lien holder, info about the vehicle.. and most will ran your credit. they wont ask for your title.