I don’t see your automobile or homeowners policy covering this accident but you can ask.
The complaint, with the way it’s worded and the exclamation point on the word help, also comes across to me as someone who is looking for a way out more than anything else.
With a little extra care the cart should never have rolled away. The problem was caused by the OP so the OP needs to shoulder the burden, even if that repair becomes major league expensive and with a rental car involved. Small repairs and touch-ups are not so simple anymore.