How to put a full-width front cover page on a Tufte-class document?

Question

I would like to put a full width picture on a front cover page using the Tufte-Latex class. How can I do it? This is my MWE:

\documentclass[openany, justified]{tufte-book}
\usepackage[utf8]{inputenc}
\usepackage{graphicx}

\newsavebox{\titleimage}
\savebox{\titleimage}{\includegraphics[height=15\baselineskip]{garden.jpg}}

\title[Hyper Simple]{%
  \setlength{\parindent}{0pt}%
A title \par \par \vspace{1cm}
  \usebox{\titleimage}}
\author{My name}
\publisher{Exhibition Catalog}

\begin{document}
\frontmatter
% r.3 full title page
\maketitle
\chapter{First chapter}
\end{document}