Call ahead and let them know you will be in attendance. That way you can guarantee they have handicap seating available.
Ticketmaster doesn't service the Warfield. AXS is the ticketing site to go to. On checkout you can select "Accessible seating" OR go to any staff member at the venue and they will be happy to help.
If you buy seats from Ticketmaster or LiveNation there is a procedure to purchase tickets for disabled seats. At any venue actually.
Go it is available. There are aeras.
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