How HSRP with VPC works in nexus5K when upstream is Palo alto firewall

[ShankL]

How HSRP with VPC works in Nexus 5K when upstream is Palo alto firewall(HA setup) ?

If PA firewalls in HA setup, how the traffic flow will be when they are connected to non VPC ports ?

If PA firewalls in HA setup and we do HA failover for some reasons, do we also need to do HSRP failover in VPC peer switches as well ? 

[marce1000]

 - FYI : https://www.cisco.com/c/en/us/support/docs/ip/ip-routing/118997-technote-nexus-00.html

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 M.