You pack up some stuff, including multiple pairs of footwear to try, and then use your uncle's knowledge to drive the motorcycle.
as you ride off, you can hear him yelling at you, but you don't care, not at all.
You stop at a motel, and go inside a room for the night. inside you take off the boots, slowly revert to yourself, and relax, however your feet stunk due to wearing your uncle's boots, so you went to take a shower, when you came back you took out all the footwear you took with you, some stunk, some were decent, some were worn, some were barely used.
You decided to try some of them on, and since you have your uncle's boots to use to skip town at any time, you do not have to worry about you family finding you.
after a while, you decide to wear