Thank you both for responding. Let me be clear, we are not looking to filter traffic over AutoVPN. Quite the contrary, we ran into an issue with one of our locations that uses AutoVPN to connect to the corporate network.
They were connecting to an on-prem application that was delivering an HR training video and they were having issues with the video not coming up, or being intermittent. A packet capture does show some sort of block happening in which you can see the http://wired.meraki.com:8090/blocked.cgi URL being served up along with the URL of the "offending" item which in this case was an MP3 file on the on-prem server. The block on that item causes the video the stop running or they get a spinning circle forever. Of course that started the chants of "It's the network!", so we started with standard network testing and we verified the network was in good shape.
While I was out of the office last week, a support ticket was opened and the Meraki support tech appeared to imply that L7 rules might be the cause (see below).
"What is the address for the application that you are trying to access across the VPN?
I do see some Layer 7 rules on West Nyack MX84-A and I am wondering if any of those rules are restricting/blocking traffic"
As you have indicated, AutoVPN should not be affected by L7 rules which I do agree with and is the reason for the post. I'm trying to understand what could be causing the block as well as calm down my management who now think AutoVPN connections as being filtered with L7.