Hi there, had the same issue. Finally found the following solution by reading the FAQ : just wrap the google code within <!--noptimize--> <!--/noptimize--> tags. It tells autoptimize to ignore what is within these tags. For instance :
<!--noptimize-->
<!-- Google Code for Commande passée Conversion Page -->
<script type="text/javascript">
/* <![CDATA[ */
var google_conversion_id = 983550975;
var google_conversion_language = "en";
var google_conversion_format = "3";
var google_conversion_color = "ffffff";
var google_conversion_label = "9ZUeCIH1lVcQ_5f_1AM";
var google_remarketing_only = false;
/* ]]> */
</script>
<script type="text/javascript" src="//www.googleadservices.com/pagead/conversion.js">
</script>
<noscript>
<div style="display:inline;">
<img height="1" width="1" style="border-style:none;" alt="" src="//www.googleadservices.com/pagead/conversion/983550975/?label=9ZUeCIH1lVcQ_5f_1AM&guid=ON&script=0"/>
</div>
</noscript>
<!--/noptimize-->