It can wait.
Thank you for tge query.
Veins which you can see are superficial. Those veins thrombosis
does not give any danger at all. Moreover veins thrombosis does not spread from foot. Most likely you have just a regular bruise
Additionally with IVC filter you are completely safe even from deep veins thrombosis.
So this definitelly can wait till tommorow. And even if there is a clot it does not need a surgery.
Hope this helps.